I just bought a used iMac G5 how to install the right itunes software and unstall

This should be the last iTunes version supported in Leopard.

This may mean if that G5 is running Tiger 10.4.11 you will be shopping around, perhaps high and low, for a retail upgrade DVD of Leopard OS X 10.5.x, so the iMac G5 can get & use later versions of important software, to include a few good third-party browsers, and maybe a newer (yet old) version of Flash player.

With a minimal level of support to the hardware, any upgrade still available should be sought. However the hardware will not support recent enough upgrades to use a modern iPhone, iPod, or iPad in the PPC G5.

Hopefully for the sake of other reference, the computer came with the original system install-restore disc set because there are items in those discs that you could find a need for even if the system on them is outdated.

Good luck & happy computing! 🙂

i'm not having any problems with itunes connecting to the internet with itunes 9.2.1 and running os 10.4.11. what version of itunes are you running?