The first four knobs on the left are for the four burners.
#1 on the left is for the left rear burner
#2 is for the left front
#3 is for the right front
#4 is for the right rear
The 5th and 6th knobs from the left are for the oven/broiler. To set the temperature and to select either broil or bake/roast.
To use the timer, you first have to set the clock to the current time using the knob in the center of the clock.
The top knob on the right is to set the start time for the oven and the bottom knob is to set the stop time. This would be used if you wanted to put something into the oven and have it come on and go off while you were away.
Those are my best guesses, I hope it helps.
"If you want to make an apple pie from scratch, you must first create the universe." -Carl Sagan