the mentioned script (and all other convertScritps )are missing ...
When you call the the convert Arnold Scene from the menu you'll get an error:
# Error: cannot import name convertAI2RPR
# Traceback (most recent call last):
# File "/Users/Shared/RadeonProRender/Maya/plugin/scripts/fireRender/fireRenderMenu.py", line 87, in convertArnoldToRPR
# from . import convertAI2RPR as aiconvert
# ImportError: cannot import name convertAI2RPR #
i have an older version of the script (2.5) wich came with an older installer , but now it's gone
Thank you for reporting this issue, i have passed it to the developers.