[akanevsky]

i'm not sure if i'm correct here,i removed the headinclude template just out of interest,and my WOL showed correctly,and that is with psiStats still enabled,could maybe a bug in headinclude template??

Yep. Heh... That'd be it.
The reason is, each page sends a request do psistats for update. Thus making everyone written down as if they are on stats page. I'll see whether I can make a walk-around this.

should have = in front of false,try this headinclude template below see if it fixes your problem

What exactly does the = do? The = is not in any ajax tutorials I've read...
What happens if you just put it to "true"?

Just checked my email and got this error again

Will fix. Forgot table prefix. Must be:
$vbulletin->db->query_write("TRUNCATE TABLE `" . TABLE_PREFIX . "psistats_cache`");
instead of
$vbulletin->db->query_write("TRUNCATE TABLE `psistats_cache`");

$version = '1.2.8';

Heh, forgot to change that too.