I succesfully installed 7.10 on my B/W G3. I had tried different LiveCD's like Ubuntu, Vine, Gentoo and Fedora, all with no succes, they all gave errors while booting, i found out that when I disconnected my internal Zip drive they would boot but no working graphics. Then I downloaded the 7.10 alternate CD and installation was flawless, everything works, I can now dual boot between 7.10 and OS X.
Bert
Bert