Integrating adsense into wp themes

I have a wp theme, 3grey. There's a few out there that are not adsense ready but I have one that has the availability of a skyscraper ad. However my dumbass does not know how to add the adsense code.

Do I need to add in into one of the stylesheets? or.. Only thing I see relevant to ADs is this in one of the style sheets,


*** I got it fixed, but is there anyway you makew the skyscraper ad scrolling as the user scrolls down the page?

any help will be appreciated.

I just stuck my adsense code into the style sheet... it just takes some playing around to get it how you like, but be sure to copy and paste the unaltered code to a text file and save before you start playing, on my blog @ w*w*w.singularity-universe.com, I slipped my adsense banner into the header, but I also had to add a spacer into my side bar so it wouldn't cover up the first part of my real side bar material.