bahahaha
that site is useless
just keep removing screws and taking piece by piece off
(make sure you keep track of which screws came off the back and which ones off the front so you don't get it all back together and realise you missed one)
eggcarton works well for this
the top panel above your keyboard has screws attaching it from the rear of the machine (in most cases) and it is held on by clips ....once you get that off, taking the whole machine down to cicuits is real easy...just remember where everything goes when it's time to put it back together
take pictures with a digi if you have to after you remove each piece