Updating a mysql table from the web using php sript

[hodicoh]

Hi
I have designed an online registration page using php and Mysql. The user inputs his/her details in a web page and the values are pisked by a php script using "post" method and inserted into their corresponding fields in a Mysql database. When I create a virtual directory in my web server (IIS 5 on Windows 2000) and test it, the system works just fine. However, when it is uploaded onto our Internet server and I submit a form over the internet, the values input in the web page are not picked. Only the UserId which is an auto increment field increases to show that a record has been added yet the other values like username, company, address, etc are not inserted into the table. Would someone suggest where the problem could be, is it the server or there could be a conflict somewhere.