Cannot share printer connected to XP machine with 2000 via Wireles

Hoping someone can help.

I have just setup a Wireless router and plugged my XP machine into it. I have attached a wireless USB device to my second 2000 box. Can access Internet on both so assuming connectivity is ok.

I was originally able to see the Workgroup on the 2000 box when in Network Neighbourhood but couldn't access anything. Decided to re-format 2000 box as it was a bit dodgy and since then have had errors when trying to access the workgroup.

I have file and print sharing running on XP and have shared the Printer. Not sure where to place this issue, as a workgroup connectivity problem or print sharing. I have both computers with the same workgroup name 'mshome'. On the XP machine I can see both Machines listed (XP and 2000), however on 2000 machine can't get into Network Neighborhood Workgroup at all.

Not sure what to do next. It is driving me up the wall.

Thanks.

Hope someone can help

Sharon