Ahh... It was a stupid problem, Indigo/Blendigo itself works fine, I just didn't enter Indigo's location into the input box. My mistake, thank you for the quick reply and the great instructions.

Sorry for taking up you're time.

Hi! I was looking for external renderers for blender and thought Indigo looked amazing, so I installed the latest versions of both Indigo and Blendigo (in that order) and followed the installation process. Blendigo saw Blender fine and I can use the "render with Indigo" script, which opens Blendigo ...