Hi everyone!

I was wondering if someone could help with a problem I'm having. Our office is using Windows 2000 server and we have had a broadband connection to the internet (cable internet) which is shared amongst several computers in the office. Our office recently moved and and the cable internet access won't be ready for 2 weeks until they get a line to the building and thus I was trying to setup a dialup connection to share among the computers in the office. The guy that originally set up the server to share the connection on Windows 2000 is not available to change the settings and so I'm trying to do it myself. I've created a connection in "Routing and Remote Access" and it connects to the dial-up ISP fine and shows the status as connected. However I am unable to get get any webpages or ping anything. (Note that when I connected via the standard Dial up Networking I can view pages but I know that in order to share the connection with certain machines I have to go through "Routing and Remote Access" {using DHCP for an address range of 192.168.0.20 to 192.168.0.40 and all other machines out of that range aren't supposed to get internet access thus some machines are assigned specific IPs in order to get access.})
Ok so I know the ISP connection is good but I remember that the guy who set it up did something with the "route change" command from DOS but I don't know what to do exactly. The server NIC has an assigned IP of 192.168.20.1 and I had tried to do the following at the command prompt:
route change 0.0.0.0 mask 0.0.0.0 192.168.20.1

I also tried the IP address that was assigned to us (did and ipconfig /all for it) when connected to the net in place of the 192.168.20.1 above.
Can anyone tell me what I need to look for or do? I think I'm supposed to put the gateway of the ISP connection but none came up with the "ipconfig /all"
Please help!
Thanks!
Max