4
open register.php in the root XOOPS folder.
find (around line 129):
$user_mailok = (isset($_POST['user_mailok']) && intval($_POST['user_mailok'])) ? 1 : 0;
replace with
$user_mailok = (isset($_POST['user_mailok']) && intval($_POST['user_mailok'])) ? [b][color=CC0000]0 : 1[/color][/b];
as you can see, all that has changed is i've reversed the 1 : 0 at the end of the line.