OK, so I was wrong about the device. It is really device 1. Looks like the function codes were correct. The PDF Jason linked (thanks!) has all the function codes, and it looks like Off is hex 32 or 50 decimal, and On is 33 hex, or 51 decimal.

Try these:
Off Device Code: 1 (0x01) Function: 50 (0x32)
0000 006D 0000 0015 0020 0059 0010 0024 0010 0024 0010 0024 0010 0041 0010 0041 0010 0041 0010 0024 0010 0041 0010 0041 0010 0024 0010 0024 0010 0041 0010 0024 0010 0024 0010 0024 0010 0041 0010 0041 0010 0024 0010 0041 0010 1295

On Device Code: 1 (0x01) Function: 51 (0x33)
0000 006D 0000 0015 0020 0059 0010 0024 0010 0024 0010 0024 0010 0041 0010 0041 0010 0041 0010 0024 0010 0041 0010 0041 0010 0024 0010 0024 0010 0041 0010 0041 0010 0024 0010 0024 0010 0041 0010 0041 0010 0024 0010 0024 0010 1295
The irp file:
Device=1
Function=0..63
Define T=0
Protocol=Metz19
Frequency=37900
Time Base=106 '106 = 4 cycles at 37.9Khz
Zero=4,-9
One=4,-16
Prefix=8,-22
Suffix=4,-1180
First Bit=MSB
Form=;*,T:1,D:3, ~D:3,F:6,~F:6,_