Google Adsense

Hi there

I'm using wpmu 2.9.2, buddypress 1.2.1.1, Scholar Theme
I'm trying to use google adsense and I succeeded adding 2 codes by simple editing my theme options and adding the codes instead of adding welcome message or anything else,

but when I tried to add another code to my homepage sidebar by adding simple text widget including the google code to the homepage widgets panel, I got the whole scholar theme distorted.

I spent almost the whole night looking around for simple google adsense widget but I didn't find what i was looking for

I need simple widget that can contain google adsense code without breaking my theme and I can drag that widget to anywhere and as many as I like, like any other widget

Please, can you help me