you can set the registration to send a copy of the registration email to the store admin by editing the webassist/plugins/registration/registration.php file (if using full registration, edit the one in the full/ folder)
find the following line:
$RecipientEmail = "".((isset($_POST["UserEmail"]))?$_POST["UserEmail"]:"") ."";include("../../../WA_Universal_Email/WAUE_users_Registration_1.php");
and change it to:
$RecipientEmail = "".((isset($_POST["UserEmail"]))?$_POST["UserEmail"]:"") ."";include("../../../WA_Universal_Email/WAUE_users_Registration_1.php");
$RecipientEmail = "youremail@yourdomain.com";include("../../../WA_Universal_Email/WAUE_users_Registration_1.php");
where"youremail@yourdomain.com" is your email address