First establish what your ethernet adapter is, it looks like it may be a Broadcom 57XX mobile card so you should be OK.
You'll need the right Kext (kernel extension) to make it run, try InsanelyMac as they have strong forums. Windows drivers will not work. Download Kexthelper to load it else you'll have to do a lot of command line (Unix) work to load the kext and repair permissions.
My card was the 5784M. I had to do some hexediting to the kext to add my computer mac address though I did see a hint that there are solutions that don't require it now.
Also the card only runs in promiscuous mode with this kext so I have to do the Unix
sudo tcpdump -i en0 with Admin password to get it to load. (I just use an Applet at startup.)
Haven't tried a wireless card kext...my spirit was broken enough by then!
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