Vista - Password protected network shares in workgroup

Goal:
4 computers using broadband connection to internet (easy)
4 computers using workgroup on router and switch to share network shares.
The second part let me explain further. I prefer to have Essentially the
entire "user files" folder shared to my other computers given they supply a
network password.

Example
PC 1 (computer name mainpc)
Shares c:\users\bobpc folder
bobpc uses a user name bobpc and password specific to him

PC 2 (computer name laptop)
Wants full access bobpc folder because bobpc has 2 terrabytes of data

But i want it to ask for the user name and password upon accessing PC1
(mainpc) in case someone young in the house sees some personal files.

MY Problem:
I cannot access the other computers i type \\mainpc i get a typical error
"is not available share. Contact the admin for access"

My attempts:
*all have workgroup the same
*all run vista business or ultimate
*all can access the internet
*reset network connections
*reset router even tried using a simple switch only without internet
*insured networks were set for PRIVATE network
*utilized user name and passwords for all accounts on all computers but the
guest account
*shared folders using advanced share and pick specific user admin accounts
to have full access
*i can under network see the computer i want to gain access but it won't ask
me for a user name and password if i type \\mainpc
*I've tried under user accounts in control panel "Manage your network
passwords" and inputed the user name nad password on the desired network i
want to gain access which semi worked but now it doens't ask for a user name
and password.
*I've disabled all firewalls and virus scanners
*pc 1 and 2 can talk freely to pc 3 but pc 1 and 2 cannot talk to each other.
*network discovery on
*file sharing on
*public folder sharing off
*password protected sharing on


CLIFF NOTES:
HOW DO I SHARE LARGE VOLUMES OF PASSWORD PROTECTED FILES WITHIN MY NETWORK
WORKGROUP THAT PROMPT FOR A USER NAME AND PASSWORD?

One option which i havne't tried yet is one of my pc's the vista business
edition was reinstalled and doesn't have service pack 1 installed but hte
others do.

Damn nobody even responded.

Oh well in case anybody else has this problem which i am sure i am not hte
only one i found the fix.

YOu must click on "computer" then mapnetwork drive. There it will offer the
forced optoin of, "log on with a differnet user account".

Make sure you have a more deeper path like...
\\laptop\shared

not \\laptop
which trying to specify a mapnetwork drive.

same problem heres my post
HELP!:how to transfer files between password protected computers

same problem heres my post:
HELP!:how to transfer files between password protected computers

Vistaluver wrote:
HELP!:how to transfer files between password protected computersDo not interject your question into an older, closed thread (let alone doing
this multiple times). Also referring helpers here in the newsgroup to a web
forum will not get you answers.

I have already answered this question in detail in the separate post you
made in this same newsgroup. Please find that thread and stick to it. I
won't be monitoring this one.

Malke
--
MS-MVP
Elephant Boy Computers - Don't Panic!
http://www.elephantboycomputers.com/#FAQ

Vistaluver wrote:
HELP!:how to transfer files between password protected computersDo not interject your question into an older, closed thread (let alone doing
this multiple times). Also referring helpers here in the newsgroup to a web
forum will not get you answers.

I have already answered this question in detail in the separate post you
made in this same newsgroup. Please find that thread and stick to it. I
won't be monitoring this one.

Malke
--
MS-MVP
Elephant Boy Computers - Don't Panic!
http://www.elephantboycomputers.com/#FAQ