Here is what Fracton gets for this difficult set of par's:

fract044 - Black Screen - Color indexes are between ~0-200, well below the log map cutoff
fract081 - Black Screen - Max iteration for all pixels
fract045 - Correct Image
apr_21 - Correct Image - There is an error in the par. It is missing a } at the end.
fract068 - Incorrect Image - Fracton sometimes draws incorrectly with outside=fmod
fract163 - Incorrect Image - Image mostly white. Uses round which I never tested with an image before now

--
Mike Frazier
www.fracton.org