I think you will have to set up identical accounts on each machine in order to do this.
Also make sure:
1) You can ping loopback (your own adapter)
2) You can ping the other machine.
3) You have file and print sharing set.
4) you have set the physical drives you want to see set up as shared (through explorer). Otherwise you cant see em.
You can also go to command line in 2000 and type "net view" and it'll give ya a list of computers in that domain that are recognized from that machine. Net view is a helpful one to play with.
I'm assuming that you have tcp/ip set identically on each machine.
Also do you have any web-accelerators or fiewalls installed? These can play some havoc with lans as well.
Whew.
I have experienced a problem with all of the above in my own network.
Inosuke
The networking neophite