[MallRomania]

I'm sorry but i don't understand your question.

If the question is for how many days i check it if this module send e-mails to peoples when price was changed the answer is one day, i just made it few days ago...

Small errors in include/product_modify.php:
add
}
before this
// end of code added by mallromania for notify when price is lower

replace:
$newprice= func_query_first("SELECT * FROM ``xcart_price_notify` WHERE productid = '$productid'");

with

$newprice= func_query_first("SELECT * FROM `xcart_price_notify` WHERE productid = '$productid'"); //remove double sign ` from table name