Hi Stephen,
Your question prompted me to look for the Atik brand on Yahoo groups. A cursory glance brought up an old forum, but it appears long since dead. Had it been alive, this would have been a good source of info. Perhaps there is another version on Yahoo, still going strong.
There is Cloudy Nights and their CCD section.
http://www.cloudynights.com/ubbthreads/postlist.php/Cat/0/Board/ccdNot specific to the Atik, but a great source of CCD cameras and processing.
Lastly, I have found a reasonable amount of response from this Atik forum. My guess is there are not that many Atik owners, but those that post have been very helpful.
Lastly, lastly, try sending an email directly to Atik tech support. They have always responded to me and their responses have generally been top notch.
Hope this helps,
Mark