XP 32 and Vista 64 network help

Hi, i would like to know how to set up a network between the 2 computers I have below?

one is running windows xp pro service pack 2, 32bit connected to a linksys router via 802.11g Wireless

the other is running windows vista home premium, 64 bit, connected to the same router via ethernet cable.


I've made shared folders on each computer but neither of them can see the shared folders on the other computer. Both computers are in the same workgroup tho, and i've checked private on the vista side of things. If possible I just want to make one drive that is shared between both computers, maybe the D drive on the xp machine or the E drive on the vista machine, doesn't matter. does anyone know how to do this, or have a link to a tutorial perhaps? thx