The 2 position switch is your Q switch. Flick it on (up), hit a note and then roll the filter up and down. You should hear a wah-wah effect when you do that with the Q on.
The other 3 position switches are your quick change switches for bass and treble. I don't know the boost levels, but there should be a boost if you flick them up, the middle is 'flat' and flicking them down will cut bass or treble.
If you're having trouble with the filter/Q switch I'd recommend you call Alembic during the day or send an email and let them know what the situation is.