non-standard front panel audio hook ups on an AA8XE motherboard

Somebody help!

I just got a new AA8XE mb and am trying to hook up the front panel audio
connections on my case. The connectors don't seem to match up at all. The
MB has these connectors according to the user;s manual:

1 MIC2 L 2 AGND
3 MIC2 R 4 AVCC
5 FRO-R 6 MIC2_JD
7 F_IO_SEN
9 FRO-L 10 LINE2_JD

But my case has the following connectors:

MIC-IN
MIC-POWER
GROUND

L-OUT
L-RET
R-OUT
R-RET
GROUND

Please help!!!

-Scott