The drivers that you copied are for windows. It's possible that you may need the wireless windows driver if you need to use ndiswrapper.
What is normally important to determine which linux driver you need is the controller chip a device uses and sometimes how the device connects. You can use the "lspci -v" command to get the necessary information. The same wireless card model could possibly be manufactured using different controllers, so you need to determine the controller used. This site has a HCL that you might want to refer to . Also, this site's wiki has a wireless section that might help also.
Googling, on the web, I found this web page which may help you set up SANE for your scanner.
http://www.epson.com/cgi-bin/Store/s...¬eoid=38581