If you are building the Ringer Kit, ignore the 10K potentiometer.

1.  Install the footswitch.  You will need a 14mm wrench for this.  Insert the
footswitch just like the diagram above, so that the solder lugs are "3 on each
side" or "2 columns of 3".  You do not want "3 on the top and 3 on the
bottom" or "2 rows of 3".  Another way to look at it is that the solder lugs form
an "X" with a line through it.  You want to position the footswitch so that the
line through the "X" is running horizontally, not vertically.

2.  Install the jacks.  You will need a 1/2" wrench for this.  If you are looking
down on the inside of the enclosure the "in" jack should go on the left and
the "out" jack should go on the right.  Position the jacks so that the solder
lugs are facing up.

3.  Install the 10K potentiometer.  You will need an 11mm wrench for this.  
Just snug the bolt.  Do not over thighten.  There is a small hole drilled in the
enclosure.  If you fit the potentiometer brackett into this hole, your
potentiometer will automatically face the correct dirction for this project.