phplist and phpmydirectory

Hi, I am looking for someone to make to alterations to my current website. 1 - I have a competition page wher ethe results are emailed back to me using formmail, I would like to include and subscription box at this point so people entering the conetest have the option (default to yes) of joining my mailinglist. My mailinglist is handled by PHPLIST. 2 - I would also like users joining my phpdirectory to also have the same option. Not sure if formmail and phplist can talk to each other like this, I am open to other suggestions or programs to simplify what I am after. Thanks Richard