ok, im trying to install a 2nd hard drive on my mac g4/quicksilver. ive done this many times on my g3, but things are rather different inside this baby.

the computer is a g4 1.25 with a seagate barracuda 80GB ultra ata drive. the hard drive im trying to install is a maxtor 120GB 7200 ata 100/133. im running mac os 10.2

there appears to be several places where the drive can go, and i cant seem to figure out how to get the drive underneath the existing drive. any advice?