You are seeing 1 instead of 0 for the counts because of how MySQL 3.23.48 handles SUM in a couple of PhotoPlog queries (see
here for further details).
In the PhotoPlog index.php file find (two spots):
Code:
Content visible to registered users only.
And replace with the following (in both spots):
Code:
Content visible to registered users only.
FYI to others: there is no need to apply this change unless you see 1 instead of 0 in the comment counts where zero is actually the true count.