Problem importing RSS

I recently moved a client from Joomla to WordPress. The way I did this was by keeping the original Joomla site up, and working on a WordPress dummy in a separate directory. I found a script that transfers Joomla posts to WordPress so that my dummy had all the old posts. When the dummy site was fully built, I deleted Joomla in the domain root and created a new wordpress installation there. I built everything back up but now I’m having a few strange issues.

I now cannot upload the WordPress export. export of all the posts that I had in the dummy installation. When I try this I get the following error: File is empty. Please upload something more substantial. This error could also be caused by uploads being disabled in your php.ini or by post_max_size being defined as smaller than upload_max_filesize in php.ini.

I have been talking with the hosting service’s support and they made sure that php.ini is configured correctly. They gave me an info.php file which says that I can upload files. I’m able to upload media, even high res pics, but the 3mb XML file will not upload.

Also another small issue I’m having is adding a the code for a twitter widget into a widget text box. On my dummy installation the code loaded fine but on the main installation when I hit “save” the widget just gives me a loading icon and never actually saves. Here’s the widget code
<script src="http://widgets.twimg.com/j/2/widget.js"></script> <script> new TWTR.Widget({ version: 2, type: 'profile', rpp: 4, interval: 6000, width: 170, height: 300, theme: { shell: { background: '#028100', color: '#ffffff' }, tweets: { background: '#ffffff', color: '#000000', links: '#068206' } }, features: { scrollbar: false, loop: true, live: false, hashtags: true, timestamp: true, avatars: false, behavior: 'default' } }).render().setUser('HungryDomaine').start(); </script>