OT Sco Unix question

[Del]

Hi:

I am running Filepro on SCO 5.0.6.
Recently I had to replace my router, and now SCO is not accessing the network.
Can’t ping the router at all.
Can’t ping the SCO box from my PC.
I don’t know much about networking, but I guess this is because the new router (Cisco RVS-4000) is configured to allocate dynamic IP addresses, and SCO is not set up for that.  My old router somehow supported both dynamic and fixed IP, but I don’t think this one will do that.  The PC’s in my network are set up for dynamic IP allocation, but not SCO.  I am running Facetwin , but if TCP/IP is not working, it can do nothing.
Can someone point me to the right resource/help file/documentation/forum to figure out how to configure SCO to accept a dynamic IP, or is this something that is best done by someone who really knows what they are doing?  The people who sold me my SCO box and set it up are long gone at this point, so I need help from somebody who really knows how, and, of course, I am willing to pay a reasonable fee for such help.  
Please reply off list.

Thanks,
Del Neroni
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