in reply to Photo Grabbing Routine

The trouble would come when trying to spider the next URL (the one with ID 456 in this case). The script creates a blank image with the proper name and into the DB is entered the ID number and date code, the original URL is not present.

As general advice, check errors. You're passing up the opportunity to detect several, including any error that may come back from $ua->request(), as well as any error that might be reported by $dbh->do().

Try going for ID 456 first. This will show whether there's a problem fetching with that particular URL. Perhaps that the page that URL refers to has no images? From the looks of the code, that would certainly cause some problems.