Bootstrapping ARAnyM with NetBSD

Hi,

Since I don't have any real Atari hardware, I figured I'd play around with 
ARAnyM. However, I can't seem to get my head around what's missing. I've 
created a PC-DOS disk image onto which I've copied netbsd-ATARITT.gz (as 
netbsd.gz) and loadbsd.ttp (from netbsd-6 from 18-March-2012). I launch 
ARAnyM, double click the A: drive (oh, how it reminds me of CP/M!), double 
click loadbsd.ttp, then type -b netbsd.gz, but then ARAnyM just crashes.

Ideally, a bootable install disk image which can be used directly with 
ARAnyM would be great. I'll be happy to make one when I can get things 
running.

Any ideas or suggestions?

Thanks,
John Klos