Microsoft ISA Firewall on Linux

Hi:
I have a Hard drive of 20GB and I have made partitions on it which are C, D, E, F. With this Iam running windows 2000 on C: and Linux Red Hat 9.0 on E: drive.

My computer is a client of a Network which has server running Microsoft ISA for internet sharing.

My question is how to install and configure MS ISA firewall client on my computer using Linux?