RedHat is the distro. lilo and grub are boot loaders.
Hmmm, have you tried googling for your card's model number?
Here's the HCL (hardware compatibility list) for Redhat. You can try looking through there. But, to be honest, you're probably going to have the best luck googling.
http://hardware.redhat.com/hcl/?pagename=hcl
If you do:
ifconfig etho 192.168.0.2
what response do you get? If none, what does:
ifconfig eth0
show you?