I am using Firefox, so I don't think an IE Bug was the issue. Also, Safari, Mac IE, Netscape, Opera and AOL could not see them either.

I solved the problem of no additional images appearing in the customer view of the site! Huge thanks to Voltage, who had the answer, and knuckle-101 and getyourgameshere for trying!

Here's what actually worked for me (and Voltage): I downloaded the includes/templates/template_default/templates/tpl_modules_additional_images.php file to my customized template directory (named "bella"): includes\templates\bella\templates and edited as follows:

I removed:

<?php
if ($flag_show_product_info_additional_images != 0 && $num_images > 0) {
?>

and from at the bottom of the file I removed:

<?php
}
?>

-being careful to remove all extra spaces on those lines of codev as well.

Uploaded the edited file to includes/templates/MY_TEMPLATE_DIRECTORY/templates

and like magic, the additional images are now visible! Hope this helps someone else.

~anne