The Beige has it's issueswith OS X, server or otherwise.
It's possible to install OS X onto a beige, but neither the Beige or the OS will like it.
Check and make sure your HD is EIDE (Mac OS Extended) formatted and of less than 15Gb before attempting the install. OS X does truly ugly things otherwise on either Beige machines or Blue and Whites. Also: on both those models, the ATA circuitry on the Mobo has a bit of a flakey streak and doesn't like larger or more than 1 drive.Install OS9 from 9.1- 9.2.2 before doing OS X of any kind. This will get your firmware in order.