For instance in one of the betterspace tuts it tells you to download the KW Edge Smoother plugin but it doesn't tell you how to run it. (I take it its probably assumed you know how)
Heres the link to that particular tutorial:
http://www.ap3d.com/betterspace/betterspace-tut-06.htm
|
I've never used it but like all modeler plugins, after loading it you can choose it from the Construct>>Additional menu.
You can also add it as a short cut or in the menu my going to Modeler>>Interface>>Edit Interface or Edit Keyboard.
That tutorial is a little old, and so is the plugin. Since then there have been many better plugins to do stuff of the sort. There are also some that might not be as good but at least are free.
Do a search at Flay.com to find more plugins.