1 problem using alternative Registration

[jstep]

I have a site and a forum, I would like to allow users to register at the site, and be automatically registered for the forum

As a matter of simplicity I would like to keep the databases seperate (they are both fairly large)

Right now here is my sql statement to register a new user

PHP Code:

// date for entry
                    $date=date('y m d');
                    // IP ADRESS
                    #
                    $userIP = $_SERVER['HTTP_X_FORWARDED_FOR'];
                    if($userIP == "")
                    {
                        $userIP = $_SERVER['REMOTE_ADDR'];
                    }
                    // Get a salt
                    $salt = substr(md5(rand().rand()), 0, 3);
                    // work with password 2 here
                    $password2= md5(md5($password2).$salt);
                    
                    $addvb= mysql_query("INSERT INTO `civclash_user` (`usergroupid`,`username`,`passworddate`,`password`, `email`, `ipaddress`, `salt`, `showvbcode`) VALUES ('2','$username', '$date', '$password2', '$email', '$userIP', '$salt', '1')");
                    if ($addvb){
                        echo "<br /> You were also added to the forum, see www.civclash.com/forums/index.php";
                    }  else {
                        echo "You could not be added to the forum. Contact the administration.";
                    } 


So essentially I am just making my registration form work for two different databases

Unfortunately (for some strange reason) when I add the new user, all their posts are listed as guest(it says their name, but lists them as guest, on the member list I can visit their profile and it shows them as a member). I can only think that it is because I forgot to add something to that query?

Sorry, I am decent at php, but by no means an expert

Any Help is greatly appreciated.

Thanks
Jstep