Stacks, a cool file browsing way from Docky has been integrated into Docky by Ricotz and available from the PPA(supports Ubuntu 10.10 Maverick and 11.04 Natty).

Installation

First, remove Docky Development PPA if any:

sudo apt-get install ppa-purge
sudo ppa-purge ppa:docky-core/ppa

Also, temporarily disable Elementary Art or Elementary Desktop PPAs (exclude Nautilus Elementary PPA. You can do this under Ubuntu Software Center -> Software Sources or via UbuntuTweak). And finally remove docky:

sudo apt-get remove dockty

Now, install Docky with Stacks from ricotz PPA and some dependences from zeitgeist-sharp PPA

sudo add-apt-repository ppa:zeitgeist-sharp/daily
sudo add-apt-repository ppa:ricotz/docky
sudo apt-get update
sudo apt-get install docky

As an alternative, download the deb package for Docky with Stacks from here.

Original post read here