Hi there,
This is a great mod, it has stopped about 90% of spammers and I don't get dead users any more.
There is one glitch that I have found though:
When a user types their email in and closes the page. If they come back it displays:
HTML Code:
Registration was done by this email, but the email was not activated.
We advice you to ensure that the activation code is not in your junk mail before requesting it again
And it shows three buttons below "Yes, I want to request the code again", "I found the code, thank you" and "Complete Registraton". The first two don't do anything at all and the third refreshes the page.