Thank you very much for the followup, that helped me duplicate your issue.
What I can report to you at this time is that there exist no COMMENTS for that photo. Rather there were 47 RATINGS for the photo and for some reason the application is including Rating-only 'comments' as if they were ordinary text comments. To me, this is an error, though I will await feedback on the matter from other admins/programmers for this site (I'm still a new admin).
Basically, 47 users rated the photo in question on a scale of 1 to 10, but no actual text comments were actually left. Had there been any text comments they would have shown under the empty brown bar that shows just above the "Add your comments" entry area.
We will have to correct this sometime, though, as ratings should not be counted as COMMENTS (IMHO) as it is confusing. It should just be a matter of adding "AND NOT comment=''" to the SQL Query I believe. I'm hoping this change can be made without any programming changes.
The other possible issue, I notice that this version of PhotoPost has a separate pp_ratings table and I am wondering if we need to move all the 'Ratings' into this table (from their current table under pp_comments) so that pp_comments table only contains actual comments???