Logic 4.7 install

[LloydTalbot]

Hi everyone. I'm very new to this and just getting started so I apologize if this is redundant or already addressed somewhere. I just downloaded Logic Platinum 4.7. On macintosh garden, I expanded it and everything, but when I try to open the program I get hit with "Key doesn't respond! LOGIC audio requires the LOGIC and the AUDIO key. Please reconnect and reboot." What else do I need to do to get things up and running? I am running it on my iMac G3 OS 9.1

Thanks!