Hey there 

http://www.zen56742.zen.co.uk/files/problem.jpg 

Here is a diagram i made in ms paint (lol!) to illustrate my
situation, including notes, basically, my laptop connected to my
m0n0wall box is assigned a IP by the DHCP on the m0nobox, can connect
to machines behind my router, but the monobox cant get past the
gateway, (my DSL modem/router) ???

Hellllp!

:) regards,
Chris