Welcome to SM R-Tillery. To view all your plug-ins, *fires up Maya* Windows > Settings/Preferences > Plug-In Manager... Everything from there on-out is pretty self-explainitory. Check in "Loaded" means its already loaded, and check in "Auto Load" to have that certian Plug-In load everytime Maya loads up. Now, where do you put your plug-ins? Im running Maya 4.5, so I would put mine in my "C:\Program Files\AliasWavefront\Maya4.5\bin\plug-ins" (thats the default directory, by the way). Hope this helps