Premise is a WordPress module for membership sites and landing pages module. The integration is done with a special plugin.
Download the plugin
Download the Post Affiliate Pro plugin for Premise.
Upload the plugin and activate it
Upload the plugin (premise-to-postaffiliatepro/ directory) into the /wp-content/plugins/ directory. Activate the 'Premise to Post Affiliate Pro' from the Plugins section in your WordPress dashboard.
When it is all active, setup the plugin so it links to your Post Affiliate Pro installation.
Do not forget to integrate your WordPress with the click tracking code.