Altering adsense code?

I have seen quiet a few sites, usually from Go Daddy, that seem to be altering the adsense code for domain parking. I know Google has a program for domain parking but these sites do not seem to be on that program. A good example would be: http://www.hellas-irc.net/

Am I mistaken and all this is is the domain parking program that Google offers?

 

publishers that do a lot of business with google get to change their ad layouts

 

Any idea what the magic number for "a lot of business with google" would be? Just curious.

 

a whole lot! hah i dont know but you will only see massive big name companies with custom ads... imdb.com is one I know.. cant think of anyone else off the top of my head though.. i think shoemoney has this capability?