Putting an adsense ad into your site is rather easy. But you will need to use php nuke tools to turn the adsense code into a block. You can find the php nuke tools module here at
php nuke tools downloads. You can also see on my site here
Phantom309drivers That I use google adsense and regular google ads that I made useing php nuke tools. It isnt real hard. The only thing that you have to watch for is sometimes the nuke tools will leave out bits of the beginning code or the first letter of a word. Hope this helps.