php to collect email addresses

We actually supply you with the code to do all that you just simply insert code such as this (this is generated from a demo account) :

<form method='post' action='http://www.indiegamebusiness.com/xxxxxx.php'>
    <input type='hidden' name='newsletter_id' value='xx'>
    <input type='hidden' name='company_id' value='xx' >
    Your email address:
    <input type='text' name='email' size='40'>
    <input type='submit' value='subscribe'>
</form>

You tell IGB what pages to forward people when they have subscribed, when they have confirmed the subscription where to go when they cancel (if they do).