Question : Exchange 2010 Edge Transport

I have a few questions about this thats bugging me, Im reading multiple guides and Im confused:

1.) Do I need two NICs?
2.) Installed Adam but wth do i do with it after that?  What are the configurations steps required?  The guides Im finding just says install and nothing else.

If someone could explaine both the above in really great detail (step by step) it would be awesome.

It also mentions the Host A records for the hosts to understand each other

Answer : Exchange 2010 Edge Transport

That was my original post lol

The issue Im having is with the DMZs which are on different Module ports on the switching module

I was able to get this working by creating a new Server with an internal ip address on the lan (not on the domain) and sending all port 25 traffic to it

Might not be the DMZ but its working perfectly fine