WordPress on SQLServer and II6

I am running IIS6 on Windows Server 2003 and SQL Server 2005. I have PHP 5.2.6 running with the SQLSRV 1.0 driver for PHP. My SQLServer database is on another machine than my web site. I continue to get the error message of “Error establishing a database connection”. The database is running, and the password is correct. I have successfully connected to the database using ODBC connections.

What else do I need to check/do?
-Farrell