sjapartments on "Tag EXIF data not read by Zenphoto"

Hello acrylian:

Thanks for you response which seems to have directed me correctly.

(a) Looking at the image.php file for my theme effervescence_plus, I found a line
<?php printImageTitle(true); ?>
Tell me if it is correct that after this line I could insert lines which read something like
<?php echo " " ;
printDownloadLink(getUnprotectedFullImageURL(),'Download'); ?>
(b) In what .php files of my zenphoto installation can I find the functions printDownloadLink and getUnprotectedFullImageURL?
(c) In what directoies of the zenphoto installation can I find these .php files ??

Regards, Michael