Display Orderform on the homepage.tpl

I have intergrate WHMCS with WordPress. What I trying to do is that when you load my Wordpress site is to have the product order form on the home page, so the user can select the product , fill in the details , click submit on the home page without redirecting to other to cart/ order form page as it is on all themes out on the market.

I have currently located homepage.tpl that has all the shortcuts links to all the pages ( including to make a order). I have removed all the shortcut links and what to display directly the order form there . any ideas how to do this?