The Neoware CA22 has a standard PC Award BIOS.
Firmware Information: Product Version P680
The boot options are
I have used a couple different USB thumb drives to install various Linux Distros, it seems the USB ports are extremely touchy. Older thumb drives seem to work better, no-name brand ones work the best ironically. Several newer USB devices, notably a Sony MicroVault 2GB drive, will sometimes cause the CA22 to lock up solid and I have not the faintest idea why.
Words on this page contributed by Michael Straw.