How can I install CS-3 from a disk on a Mac with Mountain Lion?

[Guest]

I have CS-3 on a disc, was using Mac Leopard.    Just bought a new Mac Mini with Mountain Lion and when trying to install from the disc, it did not install but put a message "contact Adobe".    The "chat" agent says he only deals with CS-6 and CC, suggested I try asking here.

[John Waller]

Download a trial version from http://prodesigntools.com/download-adobe-cs4-and-cs3-free-trials-here.html

Follow the Very Important Instructions (steps 0 to 6) on that page first BEFORE you click the download links.

Install the trial then enter your serial number to license it.