Very Basic starting help for editing scripts

Hello,
Like the title sais, I need some help.
Where can i find the Scripts from my whole forum and wich one is the script for the main lay out of the forum.

What i want to do is:
On this picture you can see the advertise. its very annoying, I want to remove it or just replace it with random Banners that I or my teammate's have made and remove the link of it when you click on it.

Is this possible by looking this up in the coding of one of the scripts and edit that part of code?

Thanks in advance.

Hi,

It is not possible to remove adds on an FM forum unless you use credits to do it. You buy them in Misc/Buy/obtain credits.

aha ok, so it is not possible to view all the scripts of my forum neighter?
So i cant change anything myself?

You can change anything you want on your forum.

Not all of them (scripts) are accessable but some of them you can access through templates for punBB and BB2.

The only thing forbiden to touch in any way without paying are the adds and the footer links on the bottom of your forum.