1) Dock Manager will move all of your Sherlock Plugins into a folder called "All Plugins." If you don't want this to happen don't use Dock Manager. If you have lauched Dock Manager and wish to remove it, run the Dock Manager Uninstaller and your plugins will return to their original location.

2) You should enable all of the Sherlock plugins before using Dock Manager's plugin management.

3) Users of non-English versions of the Mac OS will not be able to use Dock Manager at this time.
However, I am currently working on several localized versions of Dock Manager.