Can not get into a work group

I have a workgroup made up of XP profesional workstations.

I am trying to get another workstion added that runs XP home.

I can add the “home” one to the workgroup, but – When I try to access the workgroup from the “home” w\s I get “access denied, posible permisions” errors. When I tried to access the “home” one from the others (running profesion) I get the same message. It is visable in the workgroup but not accessable.

I have also tried putting the w\s into its own workgroup but get the same message when I try to access the workgroup.

Any ideas. HELP!!!!!!