Dashboard lgoin issue

I have an issue with my Word Press site. When I created it I already had a Flash site up and running so I created a sub folder of the root directory http://www.mysite.com/Newfolder as I did not want to take down the old site until the new was up and running. My hosting company support had me move the old files in the root directory into a new folder then had me move all the files in the wordpress folder to the root. You can access the site and all pages fine but the http://www.mysite.com/wp-login.php?loggedout=true after entering user name and password it keeps taking me to http://www.mysite.com/Newfolder/wp-login.php instead of http://www.mysite.com and I get this error.
Page not found
The page you are looking for might have been removed,
had its name changed, or is temporarily unavailable.

How do I get back to the dash panel? Is there a file I need to edit on the hosting site to fix this. Any help would be appreciated.

Thanks