Re: flashing liteon drive
You can use the connectivity kit or the Xbox 360 to power the drive, it doesn't matter. You do not need to use the probe for this, but make sure the drive is connected to your PC/VIA card (with a SATA cable - and turned on). Go through all the I/O ports until you find your drive. In the drive properties area you should see this:
You can also try turning off your PC, connecting your drive, then turning your PC back on (with the drive connected and powered on before you boot your PC).
However, if you cannot detect your drive - it may be that your drive is not actually in vendor mode and your problem lies somewhere else. Go through the Jungle Flasher tutorial and try to flash your LiteOn drive again from the beginning. You may also try other programs to flash your LiteOn, like DosFlash 1.8 (or you can try iPrep again).