If you use Link back
Lets Do Some Editing
At the very top you see it says "how_many_ads = 3" Change ONLY the number 3, because that is how many buttons you have on your button rotation, that is how many I have for this one, but if you have 20, more or less, then change it.
Then you will see "http://LINK1" and "Alt Text" and also "BUTTONURL", you must change those 3 so they match up with each button your adding to the rotation
The buttons I am using on this tutorial are all 88x31, but you can use any size or type of button you like, just specify the size where you see "width='88" height="31"" with the size you want.
If you want to add more than 3 then just add this code, after the last one:
Now thats all you really have to do, your done.