HierarchicalDock gives you hierarchical menu navigation of folders sitting in your Dock. As of Mac OS X 10.5, Leopard doesn't support going through more than 1 folder deep for stacks in your Dock. This makes it easier to navigate multiple folders deep with a simple click.
Full Specifications
What's new in version 1.2
Improved Performance
Fixed a bug that prevented creation of folders with "/" in the filename
Better positioning
Show Finder's color labels
Show number of items of subfolders
Fixed .essdocker extension bug for good (you may have to re-add folders with this new version)
Per-Folder settings (hold down option and command and click on the folder)
Doesn't mount servers anymore if not wanted
Fixed sizing of menus
Open QuickLook windows with option-click
Size of QuickLook Previews adjustable
General
ReleaseNovember 7, 2008
Date AddedDecember 31, 2007
Version1.2
Operating Systems
Operating SystemsMacintosh, Mac OS X 10.5, Mac OS X 10.5 PPC, Mac OS X 10.5 Intel