You'll have to install Ndiswrapper. You can download it from sourceforge.net.
After it is downloaded, follow these instructions to install. Let me know if you run into any problems.
http://ndiswrapper.sourceforge.net/m...p/Installation
To get ndiswrapper to work with your card you'll need...
1. The kernel sources (You can probably get these from your install CDs)
2. GCC for compiling the driver. You should have this, but if you get an error like "error: bash -gcc 'command not found' ", then you don't have it. If you need it, you can grab it from here.
http://gcc.gnu.org/
3. The windows driver for your card. I have a v2 WUSB54G, and that driver was called WUSB54G.inf. I believe the ver4 is called rt0025 or something like that.
One more thing, when the time comes to install the windows drivers, make sure the .INF and the co-responding .SYS files are in the same directory. I've had best success with them copied over to the hard disk.
Hope this helps.