PHP Setup, Windows Server 2007

Ok, so up until this point, I've always paid a company to host my php sites; however, I now have a need to bring the hosting in house. So, I'm setting up a PHP server on Windows server 2007 with Microsoft SQL 2008. I got the php running on the server and it works perfectly, until I put in my connection strings to connect to the SQL DB. Whenever I try to access the page that is connecting to the DB, I get a Server Error 500 and I can't do anything from there. I've tried all that I know to do. Has anybody ever had this problem, know of a way to fix this problem, or have you had experience setting up PHP with SQL 2008 and know steps that I should have taken, that maybe I didn't?

Any help would be greatly appreciated.

Thanks,
Jordon

Please don't create multiple topics; use your original one:
programming-forum/php-setup-windows-server-2007-t97755.html