Going to go ahead and put this in open beta for eXtremeUI users or who ever to test out.
I'ed like to think them that prebeta tested, I would of never seen some of the things you all found.
You can download the beta installer
here . ( Link changed to point to the download section as this is now released) I'll get some doc out on it ASAP. For the most part is all up front and should be easy to understand what to do.
There is one setting I should note. In the settings tab, you can click on advanced options to set your uisettings and also set up an exclude list of files that will not be updated. The exclude list come preset with un_notes.xml ( your notes) and sb_buttons.xml ( the quick log buttons ) and guildlogo.dds ( your guild logo ).
Be sure to make a backup of your current eXtreme directory and any uisetting files.
Put it through the works and please send me any feed back on bugs, misspellings or ideas you think would make it more helpful.