WordPress.com to wordpress.org

Hi,

I started using wordpress.com, before deciding to move over to wordpress.org. In .com, I mapped my domain name. I then tried to delete the .com blog and cancel the mapping so I could use the domain name for .org.
When I go to the http://localhost/mysite/ it opens the .org site but when I click on the dashboard or anything else, it just goes to the .com site.

I would like some advice on how to get back on to my .org site.

Many thanks