communication failue between 2 xp workstation and 2003 server

I have joined two xp workstation A and B to 2003 domain, A xp worksation has all the printers connected, I am unable to share file and printer from B xp worksation getting msg no permission acess denied, applied ntfs and share folder permission, created the account of B user in A worksation still same issue.
From Workstation B I could signup to domain but from Worksation A I am getting access denied. There is some glictch on worksation A but what I am unble find could someone help with this
Thanks