Step 1: Crack Open the Casing.
Step 2: Pretty Basic From the Top
Step 3: Carefully Turn Board Over.
Step 4: Find Your Solder Points.
My board had a small pad on what said L20 next to it that's the feed for the middle pin on the power adapter (the 5v positive).
You want to attach L20 (or where ever you get a 5v feed from the usb hub when it's plugged into the wall only)
You might need a multi-meter for this (I would highly recommend it)
Plug the usb hub into the wall, but not the pc, and probe around until you find a 5 volt feed.
Once you have found your power source, unplug the adapter from the wall socket and get your jumper wire.
I booted into windows for this, because it has that annoying "BE DOOP" sound when you attach for detach a usb device. Plug the adapter into the pc and use your jumper to bridge your two points. If you hear that sound, you're ready to solder.
Detach the hub from your pc and fire up the soldering iron (I used .022 dia solder.) and attach your two points with your jumper. Be VERY careful not to drip, or get any solder anywhere else aside from these two pins (don't wanna short out your pc) Once the solder has cooled off, plug it in and listen for the sound, if you have it. You're done. Make sure your wire is attached firmly and close up the case. Once again. DO NOT plug this back into the wall. It'll now pull it's 5v .5A from your pc.
In linux you'll get
Bus 001 Device 018: ID 0409:005a NEC Corp. HighSpeed Hub
as the output of "lsusb" if you have done this correctly.