The scripts go into the Poser Runtime Python poserscripts folder.  Cage has earned his own directory on my system.  Then, you can either run them from the File menu in Poser, or edit the mainButtons.py file and include the scripts that way.  That takes a bit of doing, but if you make a back up copy of the file and give it a whirl I'm sure you can make it work.  Just use Notepad to edit the file.  You will see how it's set up.

Like I said, make a back up first and give it a look over.  It is all about path statements.

I bet you could manage boots.  You would have to 'Poserize' the end model result and give it joint parameters.  There's a bit more to making a Poser figure than the modeling.  More here will attest to that.

PS: the above python notes apply to Poser 7.  Not sure if they've changed things with P8 or not.

-R