[Lynne]

Just write a plugin and change those values for the usergroup:

PHP Code:

if (is_member_of($vbulletin->userinfo, x, y, z))
{
    $vbulletin->options['maxresults'] = '1000';
$variable for search results per page = 100';
} 


Change x. y. z to the usergroups you want to change the value for. I didn't look up the variable name for search results per page - you can do that and then enter it there also.