Restoring frame to previous position

[MaLarsson]

I'm currently working on an addon that tracks the dots on your target.
I can now display both Hemorrhage and Rupture and move the icons around but the problem is that when I /reload or relog the positioning of the frame is reset to the center of the screen.
I tried using saved variables but did not manage to get any good results even tho I waited until the ADDON_LOADED event fired to use the variable.
I've attached the source code.
DoTracker.lua