Hi,
The Association of the product listing module if for a category listing menu.
You have to configure your module to send the customer to a specific menu (the "menu" option in the module configuration).
At this moment, the customer will open a category listing menu and you can display the product listing module.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.