[keystone]

I've worked through the changes that were suggested and still don't have this working right. I get a bunch of Undefined index: and Undefined variable: notices and have no idea how to fix them. For example...

Undefined index

Notice: Undefined index: use_taxed_price_product in /home/keyston1/public_html.dev/modules/alteredCart_On_Sale/onsale_sessions.php on line 23
Notice: Undefined index: no_globals_w_ind in /home/keyston1/public_html.dev/modules/alteredCart_On_Sale/onsale_sessions.php on line 39

// Load Settings //
x_session_register('onsale_settings');
$GLOBALS['onsale_settings'] = unserialize(func_query_first_cell("SELECT settings FROM xcart_onsale_settings WHERE os_set_id='1'"));

// Taxed Price //
$GLOBALS['onsale_settings']['use_taxed_price'] = $GLOBALS['onsale_settings']['use_taxed_price_product'] == 'Y' ? 'Y' : ''; // LINE 23
$smarty->assign('onsale_settings', $GLOBALS['onsale_settings']);

x_session_register('_message');
x_session_register('added_sales');
x_session_register('onsale_shipping');
x_session_register('cart');

$smarty->assign('onsale_messages', $_message);

// Get the Coupon Code //
$coupon_code = '';	

// Array of saletypes with discounts that load on the product/catalog page //
$cp_display = array('5', '10');

if ($GLOBALS['onsale_settings']['no_globals_w_ind'] == 'Y'){     // LINE 39
	$ind_pids = onsale_load_ind_productids();
}

example of Undefinded variable

Undefined variable: p_query in /home/keyston1/public_html.dev/modules/alteredCart_On_Sale/onsale_functions.php on line 524

	$query = "SELECT * FROM $sql_tbl[onsale]
			 WHERE begin < '".$__time."'
			 AND end > '".$__time."'
			 AND status IN ('A', 'S', 'E') $p_query $c_query $ospage_filter    // LINE 524
			 ORDER BY order_to_apply ASC";
			 
	$md5 = md5($query);
	

can someone give me an example of what I should do so I can fix the rest of them? I tried google but they talk way over my head so it's like comparing apples to oranges.
Thanks.