To my understanding it the developer's intention to recognize ALL valid xml tags in the final product - leaving something in it doesnt understand will mean that the application is flawed.
Instead of working backwards and leaving a 'hack' in the beta that leaves invalid code where it was, it makes much more sence to simply add this TitleRegion to the WoWUIDes.
To do this, follow these steps:
http://www.wowinterface.com/forums/s...ead.php?t=2579
Ofcourse instead of adding parent you will be adding TitleRegion. Hope this helps.