Adsense in header

Thanks for this lovely theme.

I’d like to do a slight modification to header of template. I want to insert a 468×60 adsense banner to the right side of header. How can I do this using <div> tag so the sitename/logo is on left and adsense banner is on right of header? The default sitename/logo is currently held in header using css and <div> tag but I need to know how to modify this so it does not break header.

This is a lovely template but it is not adsense optimized. This is only downside to this theme so far. Also, adding an adsense block (200×200, 250×250) to side does not look good. So the only other option is to add banner in header where there is a lot of white space.

Any help here is much appreciated.