Power Mac G5

I need some help with a Power Mac G5, I have the network set-up to share all computer, for some reason the powermac g3 server cannot see this computer. We are running OS X 10.5.8, other computer on network is running 10.4.11 and is acessible via internal network. We can access the Power Mac G3 server through the G4 running 10.4.11, but the power mac g5 will not see or access the G3 computer running OS 9.2.2.

Any help would be greatful.

Thanks
Brian