Service Desk 6.0

Is there anyplace to get a copy of Service Desk 6010
I have tried going to
http://archives.adventnet.com/service-desk/6010/
but the download version for that is Service Desk 7
the reason i need a copy of 6010 is to test the migration from service desk 6010 to service desk 7?
does anyone know where to get a copy of this?