Thanks Gwiazda, not only did that solve the problem I had, it solved a problem I didn't know I had in terms of the image size!

I did notice though in your fix in the other thread that you have posted the code relevant to the LIGHTBOX you've installed;

includes/modules/pages/un_wishlist_email/header_php.php ...the original code is
Code:
$email_body .= sprintf(TEXT_EMAIL_LINK, $from_name,  zen_href_link(UN_FILENAME_WISHLIST_FIND, 'wid=' . $id ));
not

Code:
$email_body .= sprintf(TEXT_EMAIL_LINK, $from_name,  zen_href_link(UN_FILENAME_LIGHTBOX_FIND, 'wid=' . $id));
I don't know if that has anything to do with it. It strikes me that if you did want to have a different filename in there then you'll need to define it yourself.