You can see from http://www.eq2interface.com/forums/showthread.php?t=13886&page=21 there is a file called "drumspersona.zip". Just download this, unzip it and put the file called "eq2ui_mainhud_persona" in your drums UI folder.
C:\Users\Public\Daybreak Game Company\Installed Games\EverQuest II\UI\DrumsUI
When you load in the game you will have to drag down your persona window, it will be below all your other stats at the bottom.
