Here you can find my stuff to do with Blades of Avernum including scenarios and work on the Editor.
The script checking tool alint doesn’t really support intel macs, so doesn’t work on 10.7+. I rebuilt the ‘processed’ version of the alint source for intel (it was just a case of hitting build and waiting..).
You can download it here. If you’re using Niemand’s AScript you can replace the old PPC alint in the application package by this one.