TaskColors for Outlook is no longer available as this feature is built-in in Outlook 2007 and above.

TaskColors 4Outlook:

An Outlook addon that allows tasks of particular interest or importance to stand-out amongst hundreds of tasks!

TaskColors 4Outlook lets you color your task lists with different colors. This makes it faster and easier to identify important tasks. See the screen shot below.
 

To change the color of a Task, simply click on the task and then choose the color from the drop-down list on the toolbar as shown below.

The selected task will automatically be displayed in your chosen color.
 

Use the following screen to configure which Task folder will these colors apply to.
You can also set meaningful labels for each colors.
 

TaskColors for Outlook is no longer available as this feature is built-in in Outlook 2007 and above.