Ray,
I figured out how to modify it to still work with ADDT.
All it is one file at Library/Application Support/Adobe/Dreamweaver CS4/en_US/Configuration/ServerBehaviors/PHP_MySQL/WebAssist/File Manipulation/Delete File_WA.htm
In that file on line 6 is:<TITLE>Delete File</TITLE>
Change that to: <TITLE>Delete Files</TITLE>
Then save and everything works lovely.
Brian