Iphone

I am currently using WIN2k advance server.
It is now currently a "printserver"
There are 2 users: user1 and user2
everyone is mapped to the printer using user1

I have a folder that needs to be shared out.
BUT only user2 can view the contents of the folder but not user1.
I treid to map it using my computer...
But i get an error saying:
the network folder specified is currently mapped using a different username and password
To connect using a different name, please disconnect any existing mapping.
Multiple connections to a server or shared resource by the same user using more than one user name are not allowed.

Any advice on how i can overcome this problem?
Can i change those that requires user2 to login as user2? How? Cause i think i checked the "save password" when i map to the printserver itself.