First make a try to access the network drive from Windows run prompt as follow:
Start > Run > \\<full-hostname-of-Unix-system>\<dir> > OK
For example, the netwrok path should be like this:
Or, if other system is in different domain then use a tilde symbol before <dir> as:
It will open the directory i.e user's home directory which he want to access through Windows. If it works, then be assured that samba mapping is OK. So then just open My computer (or right click on My computer icon on desktop) > Select "Map network drive" option > Then in "Drive" option select letter you want to assign to it i.e. X, Y, Z, H.. anything, and in "Folder" option enter the full path of mapped directory (that is, \\myhost.mydomain.myorg.com\test) and click OK. After doing this you will find a network drive mapped inside your My computer with other C, D drives.
So just try it let's know if it help you! Good luck..