I am trying to get an Ambicom CF network card working on the Zaurus SL-5500, and I already have the Windows drivers for it. (I've seen the one posting for this adapter, and I definitely know the pain that "teleute" has run into). I think this may be the only way to get this working for both of us.
I've been able to successfully compile and run ndiswrapper for Suse running on i386 (Intel) for a Linksys card I've got. Ndiswrapper allows you to use the Windows drivers in linux. It works great; in fact, I'm writing this from the Linksys running at 54Mb on Suse 9.3.
I believe that it should be possible to do the same kind of thing for the Zaurus. I just need help getting the code cross-compiled for the Zaurus' ARM architecture. The source code for ndiswrapper is at http://ndiswrapper.sourceforge.net.
Please let me know if anyone is able to cross-compile ndiswrapper. I'd really appreciate it; I would then be able to post the steps to get the adapter running with it.