Sorry everyone, the forum's email provider done goofed and there was an email outage for a few days (since late March, I believe, but not sure).
Anyway, if you're a new user who registered in the last week or so and haven't been able to receive the activation email, you can use this link to resend it: http://mylionking.com/forum/ucp.php?mode=resend_act
Sorry about that! Things should be working again.