i remember reading that thread but i am sure it is buried pretty deep! but there really isnt to much to it. drilling live rock would be just like drilling a hole in concrete. and i believe he used clear acrylic rods to run through the rocks.
i am not sure though is if you used like plastic coat hangers if there is anything in the plastic that would leach out or if it would hurt the tank in any ways!! you just do not want to put any metel rods in the tank. that i know for sure!
another thing you can do is use JB WATERWELD, i use this for placing frags on the live rock. no ill effects! the protien skimmer does work a little harder for acouple days but like i said i have had no ill effects on the corals,fish,or invertabrits.
Hope this helps and if you have anymore questions feel free to ask!