Design Apple software plug-in for an existing program.

An Apple software program wanted to be designed for addition into an existing Microsoft & Linux capable web site program. The program after a very easy set-up, automatically places a free randomly selected three line haiku poem, from within the program at the conclusion of each email, together with a template, from a link downloadable directly from the web site. This image can be cancelled from any email if not wanted. The Apple plug-in must easily install changing nothing of the functions. In short, a small add-in to make the existing program also available to all Apple users. Email::: with reply to time & approximate cost.