iMac 800MHz memory

Hello,

I'd like to upgrade the memory of my iMac 800MHz flat-panel. I know I
should only try to upgrade the SODIMM memory on the bottom of the
machine, but I also would like to upgrade the internal 168pin memory.
Does anyone of you know of an unsuported technical reference guide for
opening up these iMac's? I'd rather not use the try-and-error
approach. I've opened up several different kinds op machines, but I
never loved them as much as I do with my iMac

Cheers,
Bob.