dont worry, i would have moved stuff around anyway as the orbs/diablo textures are all that i need to be at default, have a diff choice on where other things should go(i cram alot of stuff in the middle texture).
worked out the bugs off mine and all the new default positions work; if you have already moved mini ui panels around you may want to hit the reset all button.(still uses same diablo ui files if you already have them; un-sure since i patched my package files with this: http://dl.dropbox.com/u/4155997/Diablo/Files.rar)
(i use 1440x900 and it fits fine, you just want to customize the target unit/building frames a bit since there are 2 versions, separate panels and a grouped panel)
as for the bugs, if a new panel is added to mini ui, it covers the whole screen and cannot be resized/moved. easy to fix but has to be fixed everytime a new panel is introduced
there should be a way so that it wont need fixing every time. my best guess is that instead of overwriting mini ui default moveframes.package diablo ui will just edit it. lazy to do this so if anyone else is willing to do this pls do so, ill try my best to fix it too
edit: should no longer get any problems if new panels are added to mini ui other than having to move/resize them yourselves
try to dl it again from the same link, have no problems, you might have dl'ed the older ver since i edited it a couple of times, latest has no prob for me; tested the file downloaded from my own link and had no problems(need latest mini ui 1.2.7 and movable frames 1.0, just in case)