Installation problem :: Can’t login! URGENT

Hey everybody!

I’m new here so here’s my noob question 🙂

I just installed WordPress on my server, entered the correct database info etc so it all worked. I got my user/pass and tried to login:

Here’s where it all goes down the pooper…

“Method Not Implemented

GET to /wp-login.php not supported.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.”

Can anybody help on what to do now?

Thnx!