High / Low Voltage Standby Switch Question

[Joruke]

On George's wiring diagram for the High/Low voltage standby switch:

Does there need to be something wired to the upper-left lug, or is this lug left vacant as the picture shows?

Also, the lugs are actually numbered 1-9 on the back of the switch in the following manner --

1 4 7

2 5 8

3 6 9


Does it matter if the 22 - 33K resistor is soldered to lugs 2 and 3
or if it is soldered to lugs 7 and 8 depending on which way the switch is mounted?

Thanks for the help!