Hello,

Someone would have instruments PRO LOGIC 8? Please. They are not present in my installation.

are yuo talking about the built in instruments (ESx, ESX24), or the sampler instruments for the EXS24?

I mention all these instruments is

http://www.apple.com/logicstudio/instruments/

they're part of the application package itself, so there are no seperate files

open logic, enable your core audio driver (or NO plugins will show)

create a new instrument track, and in the channel strip just above the fader are two boxes, the one on the bottom is the output destination, and it should say "Output 1/2"
the box immediately above that is the input source, it should be blank

hold your mouse down on that and a menu will appear with all available instruments

perhaps he just need to read the f****** manual