http://robcubbon.com/migrating-wordpress-com-wordpress-org/
Detailed instructions on how to move your WordPress.com blog to a self-hosted WordPress.org site without losing anything.
Here's what you need to do:
• Get a domain name (try GoDaddy, NameCheap or 123-Reg) -- it is possible that you already have this if your WordPress.com blog is www.something.com rather than www.something.wordpress.com
• Get a webhost
• Change the name servers at the domain name registrar
• Set up WordPress at your new host
• Export your posts, pages, comments, custom fields, categories, and tags in a file to your computer (XML file)
• Import the file you just exported from your WordPress.com site to your new WordPress.org site
• Customize your installation with all the lovely new themes, widgets and plugins you can get your hands on!
I don't think WordPress register domain names without them preceded by wordpress, I hope this helps.
robcub40 5 months ago