sorry I have just sorted this, I didn't have <?php require_once( "webassist/security_assist/helper_php.php" ); ?> but I don't know why it doesnt have that code by default?
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.