Duplicate folders appear over network

Folks, I need a bit of help.

I have 3 machines on a wired home network. Each computer is running a different windows OS. Machine A is XP, machine B is Vista64/ultimate, machine C is Windows7/64.

I've got one master file on B which I use as the shared file. It's located in My Documents and it's called "Shared Network Documents".

When I use machine C, the W7/64, I can go to the orb, computer, and select machine B (the vista machine) under "network". When I do that, I see 14 shared folders.

They are:
documents
documents~1
Downloads
Downloads~1
music
music~1
music~2
music~3
pictures
pictures~1
pictures~2
pictures~3
SharedNetw~1
SharedNetwor

The last one, called "SharedNetwor" is the one I really use all the time.

How do I eliminate all the ~ folders?

This has to be something fairly basic, but I haven't found a solution anywhere.

Thanks,
Ken

Hmm, it's worse than I thought.

Remember, computer B, the vista machine, is the one I want to use as the physical repository for my shared files.

Sitting at computer C, the W7 machine, I can see computer B's network files as I listed them above. However, I can alos see computer C under network. That seems odd. I'm at C and it's listed under network. I opened up computer C under network and it shows 52 shared folders. That's about 51 more than I want.

They use the same "name~#" format as above. In this case there are 5 folders which have up to ~12 copies.

This is crazy!! How do I get rid of all this?

Ken