High Traffic Script? or Black Hat SEO?

Anyone know what script they use?

http://www.fulldownloads.us/
http://instantfileaccess.com/
http://fullreleasez.com/



Webstats of 2 sites:
http://extremetracking.com/open?login=fullrslz
http://extremetracking.com/open?login=undgrnd0

Cool?

Thats some pretty good traffic, I would like to know as well.