changing statistics in index page (modified)

[meowmeow]

nobody can help?? please...
I have the number of posts and the number of threads which update regularly, but the number of members and the newest member who havent changed for the past 2 weeks... here is the relevant code.
everything looks alright with me.

PHP Code:

// ### BOARD STATISTICS #################################################
// get total threads & posts from the forumcache
$totalthreads = 0;
$totalposts = 0;
if (is_array($forumcache))
{
foreach ($forumcache AS $forum)
{
  $totalthreads += $forum['threadcount'];
  $totalposts += $forum['replycount'];
}
}
$totalthreads = vb_number_format($totalthreads);
$totalposts = vb_number_format($totalposts);
// get total members and newest member from template
$userstats = unserialize($datastore['userstats']);
$numbermembers = vb_number_format($userstats['numbermembers']);
$newusername = $userstats['newusername'];
$newuserid = $userstats['newuserid']; 


and the sql selects in the previous post...