Belkin F5D7230-4 Port Mapping Firmware Issue

Does anyone know of a way to work around the limitations of this
router? Called Belkin and they seem to be aware of the limitation of
trying to MAP port 80 and the routers "web interface" collision, but do
not appear to be worried about a firmware update. I am trying to map
port 80 to a web server on the internal LAN. I might be willing to hack
the firmware if I knew how/what to change.

Don't bother to think about this one. I read up on it more and the
model I had was the v4001 version, and Belkin already knows about this
model having a serious defect that allows the web interface to be
available on the external IP. This is currently not changeable as the
firmware is the problem, and they do not seem to be in a big hurry to
fix it. I returned this router and got a pretty good Linksys for about
the same price.