sharing folders between 2 macs

[cpnotebook80]

I have 2 imacs A and B.
When A is networked to B, I can see that particular folder thats set to share like movies.
When B connects to A, B sees ALL or rather the whole drive of A with every folder even tho just one folder is set for sharing. anyone know whats wrong.?
My settings on A is exactly the same as B and Docs is shared.

 

[FJ218700]

check the access permissions on "A's" hardrive (highlight and hit command-i) see the bottom.