I am moving my wife's WordPress.com blog to a self-hosted Worpress.org blog. I've exported the XML file, and when I upload per the instructions I get a 500 Internal Server Error. I've called my hosting provider who says there is no reason on their end why this should be happening. Out of curiosity I tried opening the file but it is giving me an error regarding something called "atom." How can I fix this problem so I can finish uploading the XML?
The blog I need help with is clueintocleveland.wordpress.com.