A saved search stack

As a student i have all my documents organized into folders according to class. I created a spotlight search that has all my documents that have been opened in the last 2 weeks so that i can have a stack with quick access to them. So i saved the stack to sidebar and i cant drag that to the dock. So i go to my library and to saved searches and drag the folder to the dock. When i click on it, it opens a new window in finder instead of expanding as a stack. Does anyone know how to make a stack out of a saved spotlight search??? Thanks.

 

However there is a workaround using Automator. You can create a simple workflow where the first item is "Find Finder Items" and the second is "New Aliases." By setting the destination folder in "New Aliases" to a specific folder that you can drag onto the dock you can achieve a similar effect as you would expect from dragging a Smart Folder. Unfortunately the icons are not preview icons but rather short cut icons. Still, it's a way to have a search accessible via Stacks on the dock. [/QUOTE]

Does this method update automatically?

 

All i did was click on my documents folder and then start to type something in search. Once the search starts, i deleted what was in the in the search field and clicked search "documents", and then add a search criteria to say last modified within the last 21 days.