User registration Solution pack will not automatically show a welcome message on the page.
you can show "Welcome <users Email> On the page by adding the following code:
Welcome <?php @session_start(); @echo $_SESSION['UserEmail']; ?>
it also does not include the logout link, you need to add that:
<a href="/users_LogOut.php">Log Out</a>
if the email is not sending, double check with the host what smtp server to use in the WA Globals file, make sure that they support sending email using the PHP mail() function.