$STH = $DBH -> prepare ('exec AddAvatars ?, @Creator = ?, @ContactMethod = ?, @ContactAddress = ?, @AvatarName = ?, @Game = ?, @Section = ?, @Width = ?, @Height = ?') or die "$DBI::errstr;";
$STH -> bind_param_inout(1, \$Error, 1);
$STH -> bind_param(2, $Creator);
$STH -> bind_param(3, $ContactMethod);
...etc...
$STH -> execute or die "$DBI::errstr;";