Hi Colin,
Our DHL Express plugin is compatible with the latest version of WooCommerce.
Kindly to MY ACCOUNTS on http://www.wooforce.com.
You can use our DHL Express plugin only for the print label and tracking information and can use the mentioned plugin for getting the rates.
You can disable the plugin in the plugin settings and can still use the plugin for the print label and tracking feature on the order page.
Let us know, if you have some query.