Hello,I had similar problems...but just about 10 mins ago...I found the required drivers on a russian site..
http://alt.linux.kiev.ua/srpm/kernel-source-et131x/get I haven't installed this myself, but will let you know once I do that...Here's another thread on the same subject...I've been on the lookout for this driver for some time now...
http://www.linux-web.de/thread/9892/2/Treiber-fuer-Agere-Systems- ET-131x-PCI-E-.html
Hope this helps Cheers
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