You are correct - you only need to lift Pin 17 - no cutting of traces required. This can then be soldered to any point on the motherboard which supplies 5v. The diagrams of which are easy to find online.
The easiest way to do it is to get a small pin, heat the base of the leg with the soldering iron, and push the pin behind the leg and pry it up. You should find it separates without any problems. Then, carefully bend the leg up so it's parallel with the motherboard then solder your wire from Pin 17 to the 5v point of your choosing. The most common point is a VIA just behind the LA6508 chip - just be careful as VIAs can be easily destroyed with ill-preparation or too much heat (and it doesn't take much).
If you need any more help or tips etc, then just post your questions here and i'll be happy to help you through the process - don't be stuck, just ask away...
Hope that helps...
LUFCfan
