Connecting Win 7 laptop wirelessly to Win XP machine

[Graham]

I am trying to get a connection to a Win XP Machine that has a printer connected to it through the wi-fi.  This used to work with an old Belken router, but we recently switched to a D-Link that has better performance and range.  Here is the basic configuration:

Win 7 Laptop - - - (wireless) - - > D-Link Router ------(wired)---->Win XP Machine ---------(USB port)----> Printer

I have tried setting up a new workgroup, changing settings in the router, but I can't get it to work.  Any ideas would be appreciated.

[Biyobi]

Can the win7 machine see the winXP machine through the network at all? If they can see each other already try disabling the printer share on the XP machine, re-booting, and then re-enable it.