I noticed this issue as well when I was attempting to install this contribution last night. It appears as though something might have gotten cut off on the instructions. Here is what I did to fix it. (Sorry if this isn't formatted properly it is my first post.) I followed all the instructions given to the letter except for Step #3 instead I did the instructions below in file /catalog/admin/includes/filenames.php I added the following line at the end [ directly before the ?> ] define('FILENAME_EASYPOPULATE', 'easypopulate.php'); in file /catalog/admin/includes/boxes/catalog.php I added this on directly below the line containing "BOX_CATALOG_CATEGORIES_PRODUCTS_ATTRIBUTES" '<a href="' . tep_href_link(FILENAME_EASYPOPULATE, '', 'NONSSL') . '" class="menuBoxContentLink">' . 'Easy Populate' . '</a><br>' . Hope this helps. The contribution works great it is really impressive. It took me awhile to get everything working well because I have over 300 items and almost none of them had product_models so needless to say it was problem.