if ($userinfo[posts]!=0 and $userinfo[lastpost]!=0) {
with this:
Code:
if ($userinfo['usergroupid']==5 or $userinfo['usergroupid']==7 or $userinfo['usergroupid']==6) {
$lastpostdate="Can't see this info";
} elseif ($userinfo[posts]!=0 and $userinfo[lastpost]!=0) {