scroll down just a little to the part titled, "Projector Headlight Installtion"
It tells you how to get the stock headlights off. There's probably some other places you can find the info aswell, but this might do it for you.
Did the mods ever think about adding a tutorial section?? I was into "messing" with Xboxes and they had a tutorial link for the various things that could be done, usually they were reader submitted and it saved a lot of time in useless forum posts. Just an idea.
Try using a light or mild rubbing compound ( A liquid or paste form of a cleaner designed to remove trash or debris from your paint. i.e.: Scratch Out, or Meguiers Cleaner Wax.) This stuff worked great on my dull, yellowish headlights. Just takes a little elbow grease. Good luck.