hi - i am trying to install fireworks CS5 (as an upgrade) and it will not accept the upgrade serial number. it is asking me for macromedia fireworks 8 and i entered the macromedia studio 8 #, which includes fireworks 8, but it rejects it. i installed it on my last computer this way and it was accepted and installed without a problem. also when i originally purchased it, i was told by adobe that this would work. thanks for any help or suggestions.