I need to configure point to point vpn between a PIX 515 E running 6.3(4)code and an ASA 5505 running 7.2. Has anyone seen any documentaion on this?

I have to add another T1 wic to our host router. I am currently useing 192.168.1.x on interface serial0/0. I understand I have to use a different address for the new serial interface, but does it have to be on a completely different subnet? and if ...