Cannot run script 0.5.2RC1 Ubuntu Karamic

[JackieBrown]

I tried coping this script to my newly created scripts directory.  The scrip shows up based on the filename I chose (clean.)

I get this error when it runs during post-processing

Cannot run script /home/xbmc/.sabnzbd/scripts/clean

That is not a very descriptive error so I am not sure where to start as far as correcting the script.

I checked the error log it just shows

2010-04-28 10:09:54,884::INFO::[postproc:317] unpack_magic finished on name_of_nzb
2010-04-28 10:09:54,886::INFO::[newsunpack:127] Running external script /home/xbmc/.sabnzbd/scripts/clean(/media/store/TV/name_of_show/Season 1, name_of_show.nzb, name_of_episode, , tv, alt.binaries.bloaf, 0)
2010-04-28 10:09:54,977::INFO::[emailer:57] Connecting to server smtp.gmail.com:25
2010-04-28 10:09:57,972::INFO::[emailer:114] Notification e-mail succesfully sent
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[shypike]

Does it have the execute bit set? (chmod +x script).
Does the first line contain something like:
#!/bin/sh