Hmmm, maybe I don't understand the question. I use adsense as part of an ETP application, for example, here:
http://mytlc.com/film/
I guess you're wondering how to put the adsense code in the editable part of etp, which I doubt would work (unless maybe you enable all types of HTML and HTML attributes to appear in ETP.)
So I guess my solution was to put the adsense code in a new ETP application.
Eric Wolfram