It has to be browser specific or a cookie problme. I don't see how you can be logged in as admin then logout, clear cookies and not be able to get back in as admin be related to a Database problem.

When you go into your database after you cannot loggin, is the God account there under the _authors table?

If so, change the password to that code I gave you before that makes the pass=password, then try logging in again.

Is there any way you can test using another browser, like Firefox or Netscape?

Or create a test Admin account that I can try? I use Firefox.