Site and admin dissapered- Please help!

I were building my website under the address http://test.adfoto.se and wanted to change it to http://adfoto.se. So I tried to change it under settings, but not the right way I soon understood. When I hit the save button the site dissapeared.

Now I cant log-in. When I try it says: Not Found
The requested URL /wp-login.php was not found on this server.
Apache/2.2.17 (FreeBSD) PHP/5.3.3 with Suhosin-Patch mod_ssl/2.2.17 OpenSSL/0.9.8n Server at adfoto.se Port 80
I had to create a new one so that I could write here for help.

And when i visit the site I just see text without my theme or pictures: http://test.adfoto.se.

Please help me!