My Acer laptop has the INPROCOMM IPN2220 Wireless LAN Adaptor, and I used ndiswrapper to install the XP drivers, originally under Suse 10.0. I've been using networkmanager, and this worked fine until Suse 10.3, when it stopped automatically connecting to my network on boot. I had to open a terminal and do
before it would connect.
I upgraded from 10.3 to 11.0, and the new networkmanager is much better, and includes a much simpler tool for roaming which seems to work fine. I can now move between networks I user regularly without having to do anything. I use KDE 4 and installed the KNetworkManager gui to run it.
You need to make sure you have network manager enabled when you set-up the wireless network card, and then you right click on the new networkmanager icon, and select "New connection" where you can set up both wireless and wired connections and make them automatic on detection.