Dropped 3rd Strike

[dacodee]

OK....

Being a new umpire (ASA Cadet), I understood the D3K Rule as "Less than two out, 1st Base Unoccupied" or "2 outs, 1st Base Occupied".

Worked a 14U Girls game and my experienced partner allowed the BR to advance to 1st when there were 2 out and 1st was unoccupied. The catcher threw her out. However, between innings, my partner stated that when there are two outs, it doesn't matter if 1st is or isn't occupied. Was he correct??? I understood it to be with two out, BR could not attempt to advance to 1st on a dropped third strike.

HELP!!!!