are you talking about the GRETTA concept files?
if so, they can be used in different ways, and don't really have a set "install".
there are some tricks to using the brain editor to "learn from text file"
you need to choose the option to have each sentence parsed seperatly
(instead of paragraph or user defined)
when you pick a topic for the selection, you need to pick all topics (lots of mouse clicks!)
then on each sentence you need to make sure it gave the appropriate topic association.
lot of work!
there are other ways to use the files though. SNOWMAN is making/has made a parser script to look through the files for his own a.i. project - Athena.
you could also write a plugin to look through them.
-hope that helps
