PIX 506e setup

HELP!!! I’ve never setup CISCO PIX firewall but circumstances require that I figure how to install one, within 2 days! here’s my setup, if anyone can help:
I have a data line coming from an IVAD unit, going into a switch. from there it splits in two: one goes to the router -> DCHP server -> workstations and another goes in the PIX firewall and out to the mail server. the DHCP on the PIX is disabled and the mail server and PIX both have external static IPs. i do not need a DMZ. can anyone point me to a step by step config guide, using the PDM.