configure invoice system and modify template in WHMCS5 - repost

Hello, we have our whmcs system, and we need some work to be done. We want the invoice system fully configured and customized with a design of our own. Whmcs does most of it. Therefore there has to be a template customization that will match our provided design ( mostly table oriented, nothing fancy ) the design for the invoice shold match something like: [login to view URL]