Hi gaijin,
Please check the forum thread : Activation server shut down for Creative Suite 2, Acrobat 7, and Macromedia products
The activation servers for CS2 and Acrobat 7 has been discontinued.
You need to use the pre-activated serial number and the installer available at : Error: Activation Server Unavailable | CS2, Acrobat 7, Audition 3
Regards,
Rave