So yeah, was a boo boo by someone at adobe, not legal at all. Just misplaced licence keys for the old software, was intended for current users of the software so that they could shutdown the older activation servers required for cs2.
Doh!
Doh way for internet to jump on the free bandwagon, even though really it is just if you use it your technically pirating it even though its an official CD Key that will work, never mind will finish off the downloads and might keep it lying around somewhere just in case...