okay, first things first, let's make sure php is correctly installed on your 2k server. To do that, let's test php. Put a .php file inside your web folder with this code:
<?php
phpinfo();
?>
that's all, then open your php file through your web server, not just by opening the file,remember, php must be processed by a server, therefore only a web server can see php files. so let's say your web server's name is webserver, and the php file is called test.php, located on the root folder of your web server. go start> run>
http://webserver/test.php
if you see a php information table, php is correctly installed, if you dont see anything, php is not correctly installed, if you get an error message, it means I go the wrong function listed. But if you do get a good installation, everythign shoudl be fine.
Now about your form, I'm going to need more information than that to see what the problem is, are you going from html to php? is your table submitting to a php file? are you using functions that dont have global values set? there are a number of different possibilites, so try that out first and then come back and tell us what happened or describe the problem better