Super Duper Scheduled Backups don't start when I am not logged in

[tom.healey]

>To test, you can set it to run a few minutes from "now" and make sure it does...

That works as expected.

But what I want is to have my computer @ 12:30 am run a backup job.

The conditions are this:
1) The machine will be asleep ( I can solve that by waking it up @ 12:29)
2) I could be logged in but the screen is locked or
3) No one could be logged in or
4) Someone else could be logged in

Does SD or some ancillary product or OS tool offer me a way to handle what I consider a deficiency in the SD scheduling mechanism. (Am I being unreasonable here?)

I appreciate your quick turn around with answers.

Thanks in advance,
Tom