Hi Sam
This is not Message Area. If you show message area then also it appears above it .
Actually it is Title Bar. Even if you don't check "Show Title" then also it appears.
All other options work through workbench like Show Application Tool Bar, Show Message Area etc.
but Show Title does not work.
I resolved it by setting
<PARAM NAME="ShowTitleArea" VALUE="False">
Param name is ShowTitleArea and not ShowTitle
Thanks and Regards
Khaleel