Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
That version, even hacked to work (which can probably be done), is not worth installing on a MacBook. It's PPC only. It'll be running in Rosetta. It'll be amazingly slow. You need to upgrade to the latest Universal version.

Edit to add: if you want to try hacking it try Googeling for AELRequiredIOPCIDevice. This is the key in the info.plist file you need to change to remove the AGP check.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.