Thanks so much for the reply!!!!! 
I found the file and inserted the code on line 82 as indicated:
echo '<td align="center"><a href="' . $scripturl . '?action=gallery;sa=view;id=' . $row['ID_PICTURE'] . '">' . $row['title'] . '<br /><img src="' . $modSettings['gallery_url'] . $row['thumbfilename'] . '" /></a><br />';
I am now getting the following error when I select Gallery:
Template Parse Error!
There was a problem loading the /Themes/default/Gallery.template.php template or language file. Please check the syntax and try again - remember, single quotes (') often have to be escaped with a slash (\). To see more specific error information from PHP, try accessing the file directly.
You may want to try to refresh this page or use the default theme.
syntax error, unexpected T_STRING, expecting ',' or ';'
Do you see anything wrong with the code above?