Customer will see vendor wise Domestic Australia Post Shipping on the cart page. This module is dependent on Vendor Multi Shipping Addon of CedCommerce Multi-Vendor Marketplace for Magento 1, so you must install multi-shipping before the installation of Vendor Domestic Australia Post Shipping Addon.

In the attached snapshot below you can see that there are two products in the cart associated with different vendors. Here you will see the vendor “testced” has enabled the Vendor Domestic Australia Post shipping for his products. So the customer will see vendor wise Domestic Australia Post shipping for this vendor.
If any vendor has not enabled any shipping method then the customer will get the rates defined by the admin for the vendor’s products.