Hi Chris,
I just tested it out by temporarily altering the email address in your profile to my own and I got a reply, so it should be working now.
With the Notifications feature, it isn't an automtic thing that you get an email when someone replies to one fo your topics. What you have to do is scroll to the bottom of the page on the thead you wish to receive notifications for, and on the left hand side there's a link marked "Favourite Topic! (toggle)". Click on this and you'll receive replies, until you either remove the Thread on "My Home", or you reply yourself.
Hopefully you should receive an email now through me replying here. If you need any more help let me know.
Chris
