I'm in a bit of an emergency and I need to install an old Acrobat version 7. But the links for activation are all bad and I can't figure out how to activate a program I own.

Anyone have any ideas for activating?  I've tried uninstalling an reinstalling but that seems to take forever and I'm away from home, on a deadline and using the old version 7 is currently my only option.  It is not installed on any other computers and I own the copy.  Can't get help from Adobe. What do I do?