I have the same kinda mobo, but I'm runnin slackware.
Maybe you could just try a modprobe of the net module and see what happens.
For me slackware found the card on its own and uses the forcedeth module.
sooo from a console try:
For the gigabit NIC, i used the sk98lin module...which is what that marvell link PEACEDOG posted is.
That one will require a kernel recompile since the last i checked its a kernel patch.
But if the kernel is new enough the code might be in there already.
Oh I haven't been able to get both NIC's workin together tho, either I'm doin somethign wrong or something aint right...I already started a thread about that.
Or instead of all that you could also try the official Nvidia divers.
That package also includes sound drivers which I havn't got to work either, hehe.