Right now even i havent seen any Adsense module, However you could try this option out, which is what i do.
Go to admin section as follows
1. Admin -> Design -> Blocks -> (Top right you will see a insert icon use that to add a block)
1.1 Select block type as html, select if you want to use default wrapper (try both with and without, whatever appeals you, you can use that)
1.2 In the custom block content select the source option on top left, and just copy paste your adsense content. and align it as per your requirment.
1.3 Go to Layout under the same Designs tab, and on the top left select the page you want to add the ad that you created just now.
1.4 Select the location, and add the recently created add block there, to the location you want and save it.
Hope this helps for now