here's the latest version:
http://dl.dropbox.com/u/1013446/Plugins.rar
I know it's annoying but I think some of the older tutorial cap files don't work with the latest version, that's why the old link is still on page one. so you kinda upgrade as you progress through tuts... I had planned to redo them to work with the latest version, but my fulltime job is a hellish oppressive negative force in my life that functions as a sort of time vortex, funneling away all my time, along with most of my freedom, and parts of my soul.
not sure if you were asking what it mean as well, but here goes
tt stands for true type
meaning you have a family called "blue"
that has several objecttypes as members of the family
you can do stuff like add objecttype to objecttype array s.tt("blue")
and instead of adding the type "blue" to the array, it will add the actual type of the object currently selected as blue
it can come in handy in other situations as well. like
on collision with "blue"
---------------do this
---------------do that
---------------system compare s.tt("blue") equals "deathsprite"
------------------------------------------begin fadeout
.....or whatever
oh yeah, you can also use it in non 's' stuff where you can normally pick an object type
like say, you want anything that's a member of "blue" to clone itself when clicked
on click on object "blue"
---system - create object
and instead of using the dropdown list, you right click on the list to choose an object, right click and click 'use expression'
then there you can type s.tt("blue"), and now that object type will be what's created
pretty much anytime you'd want to know the real type of a picked family, you can use it