Hello,
I have bought a script from a software company.After that,I have set some parameters(username and password for mysql,servername).I have uploaded the script to server properly.But i have a problem.Whenever i try to open the web page,i see a blank page.I have checked the error log.There is no error log.Everything looks ok.The scripts work,but i think that php part doesn't work.After that i have installed XAMPP.Because i am beginner and i wanted to try the script.Then the scripts work on my computer.

My system is

XAMPP includes Apache HTTPD 2.0.55, MySQL 5.0.15, PHP 5.0.5 + 4.4.1 pl1

But the scripts don't work on the hosting server.

Host server is

mysql-3.23.58
php-4.3.10
httpd-2.0.51

I have no idea what the mistake is.If you have any solution,please help me.

Note:The scripts include templates.I am not good at php script,but this template structure cold be a reason?(There are many include_once command).Also I have uploaded a simple php script to my hosting server.This script gets some datas from the database.So the simple script works.But the scripts that i bought don't work!!!

Thank you.

What versions of PHP and mySQL do the scripts rely on? PHP 5 and mySQL 5 include several new features and differences to the versions your live server is running. If the scripts you purchased rely on any of these features then you will need to find a host that runs more up to date software.
Did the scripts tell you what versions of these things they require anywhere in the documentation?