I looked it up and it led me to this: 
http://192.168.1.254/cgi/b/publicip/cfg/?be=0&l0=3&l1=0&tid=ASSIGN_PUBL_ADDR
However, it has a "Drop Down" menu and it only shows my computers. I have an internet phone that needs to be DMZ'd but I can't select it. Anyone know a work around?

I've made my own port forwarding option but whenever I remotely (from a different IP) try and log into the web config of the phone it goes to the routers username/password. I sometimes have to reconfig the modem remotely so that has to work.

This modem sure is a pain in the ass.
On which port you made the port forward ? 80 ?
80, 8080, 5060
These are what the phone needs and these are the ones I made it forward to.
Yea I wanted to tell you try 8080.
Figured out how to show it in the list. I had it setup to use STATIC IP and it won't work that way.
If it's DYNAMIC it'll show up in the drop down list (yeah, psycho I know).

Anyway. All is well now :)