Can't see shares, and also smbmount works but mount -t cifs doesn't

Hi
(this is most likely a newbie question).

A couple of problems.   I have a linux guest (puppy) running on vmplayer on a friend's machine, which runs
WinXP home. I have folder sharing enabled on the host for a few different folders.   I am trying to mount the
winxp host shared folders onto the linux guest.

First problem is that I can't seem to see the shares.  smbtree only lists the host name and the workgroup, as so:

MSHOME
                       \\JOHNCOMP

Likewise, smbclient -L JOHNCOMP               or:
                    smbclient -L 192.168.128.1   

returns this error:

Domain=[COMP] OS=[Windows 5.1] Server=[Windows 2000 LAN Manager]

	Sharename	Type	Comment
	---------	----	-------
Error returning browse list: NT_STATUS_OK
Domain=[COMP] OS=[Windows 5.1] Server=[Windows 2000 LAN Manager]

	Server		Comment
	------		-------

	Workgroup	Master
	---------	                     ------