PHP 5, Windows, and MySQL

Aside from my previous gd problems, here's another problem. It appears that PHP5 (for Windows anyways) does not support MySQL (which in itself is riduculous), but here's my problem. I have a script I just downloaded that works perfectly on Linux/Apche/MySQL/PHP5, but when I run it on Windows 2000 with PHP 4.4 I get a page full of errors. Lets forget about the errors, does anyone have any idea how to get PHP5 and MySQL to work on Windows. I have already tried 100 different variations of things from information I found searching out this problem, but maybe someone has a new idea. If it were me I'd just run this site on Linux, but this is for a friend who wants to use IIS. If your curious the errors are below. Thanks B Warning: mysql_numrows(): supplied argument is not a valid MySQL result resource in G:\Websites\Webtest\caalogin\include\database.php on line 207 Warning: mysql_numrows(): supplied argument is not a valid MySQL result resource in G:\Websites\Webtest\caalogin\include\database.php on line 218 Warning: session_start(): Cannot send session cookie - headers already sent by (output started at G:\Websites\Webtest\caalogin\include\database.php:207) in G:\Websites\Webtest\caalogin\include\session.php on line 46 Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at G:\Websites\Webtest\caalogin\include\database.php:207) in G:\Websites\Webtest\caalogin\include\session.php on line 46 Warning: mysql_numrows(): supplied argument is not a valid MySQL result resource in G:\Websites\Webtest\caalogin\include\database.php on line 218 Warning: mysql_numrows(): supplied argument is not a valid MySQL result resource in G:\Websites\Webtest\caalogin\include\database.php on line 207 Warning: mysql_numrows(): supplied argument is not a valid MySQL result resource in G:\Websites\Webtest\caalogin\include\database.php on line 218