Well, if you do have an ACX100 chipset, you'll want to have a look at the native linux drivers
To be honest, the best step-by-step for ndiswrapper install instructions you'll find are in the INSTALL file that comes with the ndiswrapper files. Probably the best thing to do at this point is to post the actual errors your getting from make install, otherwiser we are just going to be guessing. However, be aware that Fedora and ndiswrapper can be a poor fit. Be sure you've grabbed the latest ndiswraper files, maybe even the 1.0-rc files.