I'm not sure if I am answering your question , but as I had a bit of trouble setting my system up I thought this might be helpful.
The network storage location is in the format: \\10.0.1.1\###\### (where ### is the name of the network drive and a subfolder, if you need it)
Workgroup is WORKGROUP, unless you have renamed it on the WINS tab of the Network Advanced section of System Preferences
I believe the user name can be anything
The password is the password you set to access the drive
I just set the WINS to 0.0.0.0
I hope that helps