Until WinMPQ is fixed, there ar at least two ways to help you:
Blizzard's tool to extract the interface files:
http://ftp.blizzard.com/pub/WoW/othe...terfaceKit.zip
MyWarcraftStudio:
http://www.curse-gaming.com/mod.php?addid=657
WRT the pets: arent they using sth else then mana/energy/rage?
There is a UNIT_FOCUS event, maybe this fires.