Win2000 Security problem

I am attempting to network a Win2000 machine with another Win98SE machine. I have established a New User on the Win2000 machine and given it a password. The new user account appears to establish correctly, but when I attempt to access the shared folders on the 2000 machine from the 98 machine and am asked for a password, when I enter the password previously established I am told that it is incorrect. Also the path shown to the 2000 machine is in the following context: \\(computer name)\IPC$. I have deleted and reentered/changed the user name and password several times and still receive the same incorrect password and error message. There is another 98 machine on the network that I set up some time ago and it is not having any difficulty. It is set up the same way. I tried adding a third 98 machine with a new IP address as a test and have the same password problem. All machines see eachother on the network. The 2000 machine can access everyone elses drives and the 98 machines can all access other 98 machine drives. The 98 machine the can access the shared folder displays a normal path format (i.e. \\(computer name)\(folder name)