I was going to say the same thing as LimeDude. When I went to Apple's site, I found this:

"Important Information:
There is no way to upgrade any version of System 7 or Mac OS 8 to Mac OS 9 through a software update. You must purchase an upgraded version of Mac OS. Mac OS X includes a Mac OS 9 CD in addition to Mac OS X."

Maybe Jaguar is the difference? I still would call Apple and ask them.