Front panel audio connections

hi all

I built my new system but have trouble figuring out where to place the front audio cables and usb cables from the case into the motherboard. I have the asus p5n-e sli motherboard

The front panel conections are

MIC-IN
MIC-BIAS
GND
SPKOUT-L
SPKOUT-R
RETURN-L
RETURN-R

and the motherboard conections (HD-audio-compliant pin definition) as in the manual are

PORT1L....GND
PORT1R....PRESENCE#
PORT2R....SENSE1_RETUR
SEBSE_SEND......
PORT2L....SENSE2_RETUR

and the legacy AC'97 compliant definition is

MIC2.....AGND
MICPWR....NC
Line out_R....NC
NC.....
Line out_L....NC

What goes where? my motherboard using AC'97 as standard according to the manual.

Also the front panel usb conections on the case are

(1) +5V
(1) -D
(1) +D
(1) GROUND

(2) +5V
(2) -D
(2) +D
(2) GROUND

and the motherboard connections as in the manual are

USB78

USB+5V.....USB+5V
USB_P7-.....USB_P8-
USB_P7+....USB_P8+
GND.....GND
.....NC

USB56

USB+5V......USB+5V
USB_P5-.....USB_P6-
USB_P5+....USB_P6+
GND....GND
..NC

All help will be greatly appreciated thanks.