unzip alimail.zip
on panel folder
then on panel/index.php
find
(core::$user_rights == 9 ? '<li><a href="index.php?act=counters">Отправить письмо</a></li>' : '')replace it with
(core:: $user_rights == 9 ?
'<li><a href="alimail.php">Send Mail To All</a></li>' : '' )note :: code contain Russian words
So Search Yourself
and use quote