Errors when exporting

I’ve done most of a wordpress site for a family members business. Unfortunately I was also moving house at the time so I installed XAMPP light and developed it just on my local machine as I had no net. Now I need to move across the website from my machine to his web server. I tried to do this yesterday using export.php and trying to download the file. However after I click download file I get this in my browser:

Warning: strip_tags() expects parameter 1 to be string, array given in D:\xampplite\htdocs\wordpress\wp-includes\formatting.php on line 2773

Warning: Cannot modify header information – headers already sent by (output started at D:\xampplite\htdocs\wordpress\wp-includes\formatting.php:2773) in D:\xampplite\htdocs\wordpress\wp-admin\includes\export.php on line 44

Warning: Cannot modify header information – headers already sent by (output started at D:\xampplite\htdocs\wordpress\wp-includes\formatting.php:2773) in D:\xampplite\htdocs\wordpress\wp-admin\includes\export.php on line 45

Warning: Cannot modify header information – headers already sent by (output started at D:\xampplite\htdocs\wordpress\wp-includes\formatting.php:2773) in D:\xampplite\htdocs\wordpress\wp-admin\includes\export.php on line 46
http://localhost/wordpress Lisclare quality homecare products Fri, 16 Jul 2010 10:28:25 +0000 http://wordpress.org/?v=3.0 en 1.0 http://localhost/wordpress http://localhost/wordpress uncategorized http://wordpress.org/?v=3.0 http://localhost/wordpress/?p=44 Thu, 01 Jan 1970 00:00:00 +0000 http://localhost/wordpress/?p=44 44 2010-07-16 10:28:25 0000-00-00 00:00:00 open open auto-draft 0 0 post 0 http://localhost/wordpress/?page_id=63 Thu, 01 Jan 1970 00:00:00 +0000 http://localhost/wordpress/?page_id=63 63 2010-07-16 13:23:06 0000-00-00 00:00:00 open open auto-draft 0 0 page 0 http://localhost/wordpress/?p=1 Mon, 05 Jul 2010 16:31:05 +0000 http://localhost/wordpress/?p=1 1 2010-07-05 16:31:05 2010-07-05 16:31:05 open open hello-world trash 0 0 post 0 _wp_trash_meta_status _wp_trash_meta_time _wp_trash_meta_comments_status 1 http://wordpress.org/ 2010-07-05 16:31:05 2010-07-05 16:31:05 post-trashed 0 0 http://localhost/wordpress/?page_id=2 Mon, 05 Jul 2010 16:31:05 +0000 http://localhost/wordpress/?page_id=2 2 2010-07-05 16:31:05 2010-07-05 16:31:05 closed closed about publish 0 0 page 0 _wp_page_template _edit_lock _edit_last image http://localhost/wordpress/?page_id=5 Thu, 15 Jul 2010 16:34:59 +0000 http://localhost/wordpress/?page_id=5 5 2010-07-15 16:34:59 2010-07-15 16:34:59 open open shop publish 0 0 page 0 _edit_last _edit_lock _wp_page_template image http://localhost/wordpress/?page_id=7 Thu, 15 Jul 2010 16:35:26 +0000 http://localhost/wordpress/?page_id=7 7 2010-07-15 16:35:26 2010-07-15 16:35:26 open open directions publish 0 0 page 0 _edit_last _edit_lock _wp_page_template image http://localhost/wordpress/?page_id=10 Thu, 15 Jul 2010 17:00:38 +0000 http://localhost/wordpress/?page_id=10 10 2010-07-15 17:00:38 2010-07-15 17:00:38 open open contact-us publish 0 0 page 0 _edit_last _edit_lock _wp_page_template image http://localhost/wordpress/?page_id=13 Fri, 16 Jul 2010 09:25:40 +0000 http://localhost/wordpress/?page_id=13 13 2010-07-16 09:25:40 2010-07-16 09:25:40 open open special-offers publish 0 0 page 0 _edit_last _edit_lock _wp_page_template image http://localhost/wordpress/?attachment_id=23 Fri, 16 Jul 2010 09:40:26 +0000 http://localhost/wordpress/wp-content/uploads/2010/07/Lisclare-Logo-2col2.jpg 23 2010-07-16 09:40:26 2010-07-16 09:40:26 open open lisclare-logo-2col inherit 13 0 attachment 0 http://localhost/wordpress/wp-content/uploads/2010/07/Lisclare-Logo-2col2.jpg _wp_attached_file _wp_attachment_metadata http://localhost/wordpress/?attachment_id=28 Fri, 16 Jul 2010 09:48:21 +0000 http://localhost/wordpress/wp-content/uploads/2010/07/SSL20673.jpg 28 2010-07-16 09:48:21 2010-07-16 09:48:21 open open 28 inherit 27 0 attachment 0 http://localhost/wordpress/wp-content/uploads/2010/07/SSL20673.jpg _wp_attached_file _wp_attachment_metadata http://localhost/wordpress/?page_id=27 Fri, 16 Jul 2010 09:50:25 +0000 http://localhost/wordpress/?page_id=27 27 2010-07-16 09:50:25 2010-07-16 09:50:25 open open special-offer-2 publish 0 0 page 0 _edit_last _edit_lock _wp_page_template image http://localhost/wordpress/?page_id=31 Fri, 16 Jul 2010 10:02:18 +0000 http://localhost/wordpress/?page_id=31 31 2010-07-16 10:02:18 2010-07-16 10:02:18 open open latest-news trash 0 1 page 0 _edit_last _edit_lock _wp_page_template image _wp_trash_meta_status _wp_trash_meta_time http://localhost/wordpress/?p=9 Fri, 16 Jul 2010 10:28:25 +0000 http://localhost/wordpress/?p=9 9 2010-07-16 10:28:25 2010-07-16 10:28:25 open open new-healthcare-technology publish 0 0 post 0 _edit_last _wp_old_slug _edit_lock http://localhost/wordpress/?attachment_id=47 Fri, 16 Jul 2010 11:48:41 +0000 http://localhost/wordpress/wp-content/uploads/2010/07/spain-2009-adidas-confederations-cup-football-shirt.jpg 47 2010-07-16 11:48:41 2010-07-16 11:48:41 open open spain-2009-adidas-confederations-cup-football-shirt inherit 46 0 attachment 0 http://localhost/wordpress/wp-content/uploads/2010/07/spain-2009-adidas-confederations-cup-football-shirt.jpg _wp_attached_file _wp_attachment_metadata http://localhost/wordpress/?page_id=46 Fri, 16 Jul 2010 11:50:23 +0000 http://localhost/wordpress/?page_id=46 46 2010-07-16 11:50:23 2010-07-16 11:50:23 open open special-offers-3 publish 0 0 page 0 _edit_last _edit_lock _wp_page_template image http://localhost/wordpress/?attachment_id=54 Fri, 16 Jul 2010 12:23:17 +0000 http://localhost/wordpress/wp-content/uploads/2010/07/Lisclare-Logo-2col1.png 54 2010-07-16 12:23:17 2010-07-16 12:23:17 open open lisclare-logo-2col-2 inherit 13 0 attachment 0 http://localhost/wordpress/wp-content/uploads/2010/07/Lisclare-Logo-2col1.png _wp_attached_file _wp_attachment_metadata http://localhost/wordpress/?page_id=64 Fri, 16 Jul 2010 13:27:33 +0000 http://localhost/wordpress/?page_id=64 64 2010-07-16 13:27:33 2010-07-16 13:27:33 open open frequently-asked-questions publish 0 0 page 0 _edit_last _edit_lock _wp_page_template image http://localhost/wordpress/?attachment_id=68 Fri, 16 Jul 2010 13:34:26 +0000 http://localhost/wordpress/wp-content/uploads/2010/07/showroom_01.jpg 68 2010-07-16 13:34:26 2010-07-16 13:34:26 open open showroom_01 inherit 27 0 attachment 0 http://localhost/wordpress/wp-content/uploads/2010/07/showroom_01.jpg _wp_attached_file _wp_attachment_metadata http://localhost/wordpress/?attachment_id=72 Fri, 16 Jul 2010 13:40:23 +0000 http://localhost/wordpress/wp-content/uploads/2010/07/belfast_01.jpg 72 2010-07-16 13:40:23 2010-07-16 13:40:23 open open belfast_01 inherit 46 0 attachment 0 http://localhost/wordpress/wp-content/uploads/2010/07/belfast_01.jpg _wp_attached_file _wp_attachment_metadata http://localhost/wordpress/?attachment_id=81 Mon, 19 Jul 2010 09:20:25 +0000 http://localhost/wordpress/wp-content/uploads/2010/07/widnes_01.jpg 81 2010-07-19 09:20:25 2010-07-19 09:20:25 open open widnes_01 inherit 2 0 attachment 0 http://localhost/wordpress/wp-content/uploads/2010/07/widnes_01.jpg _wp_attached_file _wp_attachment_metadata http://localhost/wordpress/?attachment_id=94 Mon, 19 Jul 2010 10:26:30 +0000 http://localhost/wordpress/wp-content/uploads/2010/07/widnes_01.png 94 2010-07-19 10:26:30 2010-07-19 10:26:30 open open widnes_01-2 inherit 2 0 attachment 0 http://localhost/wordpress/wp-content/uploads/2010/07/widnes_01.png _wp_attached_file _wp_attachment_metadata http://localhost/wordpress/?attachment_id=95 Mon, 19 Jul 2010 10:27:36 +0000 http://localhost/wordpress/wp-content/uploads/2010/07/widnes_011.png 95 2010-07-19 10:27:36 2010-07-19 10:27:36 open open widnes_01-3 inherit 2 0 attachment 0 http://localhost/wordpress/wp-content/uploads/2010/07/widnes_011.png _wp_attached_file _wp_attachment_metadata http://localhost/wordpress/?attachment_id=97 Mon, 19 Jul 2010 10:30:46 +0000 http://localhost/wordpress/wp-content/uploads/2010/07/widnes_012.png 97 2010-07-19 10:30:46 2010-07-19 10:30:46 open open widnes_01-4 inherit 2 0 attachment 0 http://localhost/wordpress/wp-content/uploads/2010/07/widnes_012.png _wp_attached_file _wp_attachment_metadata

Does anybody have any idea whats wrong or how to fix it?