You should be creating and working with your own template and not classic as if upgraded you will loose all your edits.
Get a copy of includes/templates/template_default/templates/tpl_index_product_list.php
After editing you will place this in includes/templates/classic/templates/tpl_index_product_list.php and if the templates folder does not exist create it.
Move the lines about 84 to 107 above the description code or most likely above the
Code:
<?php
if (PRODUCT_LIST_CATEGORIES_IMAGE_STATUS == 'true') {
Entry
- save and upload as above - if you make an error just delete your edited file and start over