on the radio? what channel was that?
there are no free cs suites. but people with cs2 licenses are allowed to download cs2 programs and activate with volume licenses instead of using individual license activation via activation server.
people without cs2 licenses are able to use those same programs without permission. some people (eg, your radio station) believe that means they are allowed to use the cs2 programs legally.
CS2 is not intended to be free but see the below links (and caveat emptor).