Merak help needed

[PLightstar]

I have Merak 4.4.2 running on my server which controls all my e-mails, Yesterday I installed a Netgear DG834G Wireless ADSL Firewall Router, which as taken away the Internet responsibilites away from the server because it was dragging it down somewhat. The problem I have now is getting Merak to use this router to recieve e-mails from our Mail server, has anyone got any knowledge of the Merak system to help me point the the program at the router so I can recieve e-mails again?

Running Windows 2000 server edition SP4.