Client Version: 3.3.5
This addon displays a large yellow number (and text for numbers > 60 seconds) on spell icons for action bars, bags, character sheet, and quest icons in the tracker. Font can be modified, and the cut-off for how long a cooldown needs to be in order to display on the button can also be changed. The number begins flashing when time remaining is less than 10 seconds.
Having problems with version 3.3.5
Updated to the correct link.