how add shared printer to surface rt?

just got a Microsoft Surface RT.  also have a windows vista home pc with some printers hooked up via usb,  the Surface and the Vista pc are both on my network.

My surface is using a Microsoft account (instead of a local account) to sign into windows; it seems that sharing printers on vista expects the Surface to share the same windows user ID & password, whereas the surface is using a Microsoft account for login.

So how can I access my printers on the vista pc from my surface?

Thanks-