images wont post into site

Hey guys, I hope someone can help. I’ve been trying to add an image into my page but it wont do it. After I hit “insert into post” it just freezes and gives me a blank page, this was what I got last time:

http://specialneedsequipment.org/wp-admin/media-upload.php?type=image&tab=type&post_id=12

but nothing, just a blank page. I don’t think it has anything to do with me upgrading to 3.03 because it did the same thing before. I have wordpress direct also and that works when I go to post images and the like. It’s really got me buggered why this isn’t working. Please help..Grant