While I finally started my skinning project for Lotro I noticed that for some weird reason Player vitals go under the Bottom Bar (or what you call it, the largest element where your main bar is located) but Opponent vitals are on the top of the Bottom Bar.
So when you move your Player vitals frame over the bottom bar it actually goes under. I wonder why the aligments are like that :s I assume they shouldnt
Heres a picture that might help you to understand what im trying to say
I did find a way around it though it isnt the way it should be done
