The mod I wrote will only work for 1.09. I'm still not sure why it won't work for you, as it works fine for me.
For now, you can see the missing monsters (but not unique monsters), by using the patch I created in 2002. This doesn't restore the monsters to their correct dlvls, but instead puts them on dlvl 1 while turning off the regular monsters that appear on that dlvl.
edit: I just read your post properly I see you said that you can't get anything to work with DHack. What are the error messages you get?
For now, you can see the missing monsters (but not unique monsters), by using the patch I created in 2002. This doesn't restore the monsters to their correct dlvls, but instead puts them on dlvl 1 while turning off the regular monsters that appear on that dlvl.
edit: I just read your post properly I see you said that you can't get anything to work with DHack. What are the error messages you get?
"What contemptible scoundrel stole the cork from my lunch?"
-W.C. Fields
-W.C. Fields