Problems installing iLife '08 on iMac G4 with OS X 10.5.5

[rheal23]

My machine meets all of the hardware requirements except for those needed for iMovie, which I don't need. I'm only really interested in iPhoto.

When I put in the DVD for iLife into the iMac, the machine never reads it properly, and never brings up an iLife '08 icon to begin the installation.

Any ideas on how I can proceed?

Thanks,

Rheal23