Sorry i know i asked this before but i still dont get it is PHP a program that you need to buy or something? or is it just a site saved as a PHP instead of a HTML?

PHP is a server-side scripting language that can perform things way out of HTML's range. If you know anything about Javascript, it's similar and i'm stretching the word similar there because Javascript is on a person's computer and PHP is on the server. You do not need to buy it, it's free and many webhosts have it. For more information i would go to http://php.net

would you say PHP is useful and great? is it easy to learn as HTML?

PHP is VERY useful and i would say it is great....learning isn't as easy though. I would start off by learning Javascript...there are some good tutorials out there.. if you would like to just jump into php, there are many out there as well...

THX!!! 4 your help!!!

you're welcome :)

SOme nice beginners tutorials here
http://www.w3schools.com/