I figured out a way to automatically CHMOD uploaded files.
My host's default setting is set to 600. If you're getting 403 errors while looking at your images, and you don't feel like making a custom php.ini file, just do this simple edit.
Open upload.php in your photoplog folder.
Find:
Code:
Content visible to registered users only.
Under it, add:
Code:
Content visible to registered users only.
And it should work. It worked for me. ^_^