WAN help on isdn needed

we set up an isdn link with two cisco 770 routers they connect fine. one
machine is a win2k pro the other end is a windows 95 machine. from the win2k
we can get to the shared files on the win 95 but not the other way around.
The network is set upbasic peer to peer user name is set and we can ping
the win2k machine but need some help to get it to show it’s shared files!
this isdn is a direct point to point (no internet)
any help I’m pullin my last few hairs out!