admin/checkimages.php:
Replace this line:
$num_newimages = (isset($HTTP_POST_VARS['num_newimages'])) ? intval($HTTP_POST_VARS['num_newimages']) : 30;
with
$num_newimages = (isset($HTTP_POST_VARS['num_newimages'])) ? intval($HTTP_POST_VARS['num_newimages']) : 100;
Greets Jan