hi there, sorry i'm italian and i can't speak your language, anyway i have your hardware and same problems. here is the solution if u have not find it yet.
(Assuming u can't access internet)
0.u have to download in some way this package
http://people.redhat.com/csnook/atl2/atl2-2.0.4.tar.bz2 and unpack somewhere in your pc.
1.start ubuntu.
2.insert the livecd
3.system->adiministrations->software sources(to manage repositories) : select the Ubuntu 8.04 cdrom and exit
4.start synaptic
5.reload repositories 1 or 2 times (u'll get an error, couse u can't connect to internet)
5.now install build-essential
6.open terminal, and go to the directory of the downloaded package (there's no src/ subdirectory)
7."make" end enter. that creates our beautiful module we searched for so long . it's named "atl2.ko"
8.now if u type "sudo make install" that simply doesn't work, I dunno why (i'm not expert at all of compiling and modules etc...)
9.type "sudo insmod atl2.ko" and enter. (now your module is loaded and fully functional)
10.system->admin->net : unlock to go to your ethernet properties, deselect roaming mode and, for example use "automatic dhcp" (if u usually connect that way, if not change as desired).
11.close and you should be up and running
Problem: when u exit your machine, next time you restart u have to do the last passages (n.9 in particular), so we have to find a way to install permanently the driver. It's something simple and stupid (maybe modprobe or something like that) but i actually don't know it;) .i'm googling right now for the solution...
bye
