[calorie]

Try editing the ACP Display Order admin_global plugin, finding:

$acp_display_order_access = 0;

if (defined('VB_AREA') && VB_AREA == 'AdminCP')
{
	// blah blah
}

And replacing with the following:

$acp_display_order_access = 0;

if (defined('VB_AREA') && VB_AREA == 'AdminCP'
	&& $vbulletin->userinfo['userid'] == 1)
{
	$acp_display_order_access = 1;
}

So only userid one can use this mod.