Download for distribution 13/03A or 12/10B (includes sitemap.php version 0.9 upgrade), unzip and upload over the top of your Price Tapestry installation:
admin/support.php
includes/database.php
includes/tapestry.php
setup.php
sitemap.php
Download for distribution 14/06A, unzip and upload over the top of your Price Tapestry installation:
includes/tapestry.php
(there is no need to re-run set-up if already installed)