There really isn't a 'trash manager' in Joomla! 1.5. Instead, there is an article trash, and a menu trash. Should we split this up and add a new help screen? or keep them together, and just talk about both?
The thing is, that the 'help' button at article, menu trash both link to this trashmanager screen. We could split it up, but we need to contact some one from the Core-team for that (so the key references will be changed in 1.5.3)