UpdateMXDTags Script by ESRI in July 2010 Help with running - beginner

[TerryHiggins1]

Ok I am at a loss on how to use the UpdateMXDTags script. Based on the comment section it states the script is intended to run from a script tool and requires two input parameters. I created a toolbox and placed the script inside. When I open up ArcCatalog and double click on the script it pops up with "This Tool has no parameters". I expected the input window to appear to enter in the parameters. Obvious I am not understanding how to use this. I am an absolute beginner trying to take some sample scripts and apply them to my work as a learning process.
Note it says this was written for 10.0 - I'm running 10.1. It was downloaded from the SampleArcPyMappingScriptTools
Thanks
Terry

[LucasDanzinger]

The script is probably set up to take user specified arguments, but when you make the script tool, you need to specify the parameters in the properties of the tool. Please see this help page: Setting Script Tool Parameters.

[TerryHiggins1]

Thanks that was exactly the part I was missing. I got it working now and learned a lot along the way.