Firefox can't see 2nd network

[VeNT]

I've a win2k box here that I need help with

its got two adapters, connected to two networks

there is network 1 (the internal LAN, no internet connection)
and network 2 (lan with internet)
I have network 1 as 192.168.2.xxx and network 2 as 192.168.1.xxx
IE can see 192.168.2.1 (intranet website) and use the internet
firefox can only see the internet :S

this wouldn't be an issue but I need IE7 to use the intranet site! windows 2000 does not have access to IE7!

can anyone help here?
is there either a way to sort out firefox or install IE7 on windows 2000?

 

[VeNT]

no

 

[VeNT]

just says can't find the site
seems odd that IE works (ie 6 atleast) but firefox can't! really really random
gonna give in and put a XP machine where it is and try that with IE7, atleast that will work
or maybe I should just use a VM insted