windows 5.2.10 PHP not working with phpinfo

I got 5.3 working but found out there was no php_mssql.dll for it. Somebody (who didn;t know) said I had to return to 5.2.8 but I found no 5.2..8 so I am trying 5.2.10 _________________________________________problem: under IE8: http://72.47.28.128:8080/phpinfo.php with: <?php phpinfo(); ?> I get : The website cannot display the page HTTP 500 Most likely causes: •The website is under maintenance. •The website has a programming error. ___________________________________________ I installed : php-5.2.10-Win32-VC6-x86.zip and put php.ini in C:\PHP and C:\PHP\ext AND C:\WINDOWS, C:\WINDOWS\system and C:\WINDOWS\system32 I installed FastCGI 1.5 ! In php.ini I put : ________________________________ cgi.force_redirect = 0 // for CGI extension_dir = "C:\PHP\ext" commented out ;doc_root = "C:\inetpub\wwwroot" // for IIS/PWS leaving doc_root = _________________________________________________ IIS 5.1 properties->configuration I added .php C:\PHP\php5ts.dll GET,HEAD,POST,DEBUG Maybe php-win.exe _________________________________________________ I added to the XP Prof environment path ;C:\PHP\;C:\PHP\ext\ I created an environment variable (and rebooted) PHPRC = C:\PHP;C:\PHP\ext I never found any statement of the necessity of requiring CGI The instructions ramble around