Compatability problems with WinXP Home Edition

I've been using an MN-250 Wireless Notebook Adapter for
the past year or so. I just recently installed Microsoft
Service Pack 2 and since installing it my wireless
adapter hasn't worked. I un-installed it and tried
reinstalling it but when I put the CD in, I got a message
that said "Microsoft Broadband Networking has a known
compatibility issue with this version of Windows. For an
update that is compatible with this version of Windows,
contact Microsoft Broadband Networking." I never got
this message the first time I installed the software.
Does anyone have a link or URL that I can access this
update at so I can get my adapter to work on WinXP Home
Edition with Service Pack 2???

Thanks!