aspNetEmail troubles

Ok, so here's what I got so far...

I added this to my web.config file
<assemblies>
<add assembly='aspNetEmail, Version=3.0.0.0, Culture=neutral, PublicKeyToken=bc571e8da1c1f543'/>
</assemblies>
under the <system.web> tag

I added <%@ import Namespace='aspNetEmail' %> to the page I'm trying to send emails from

When I try to use Dim msg As New aspNetEmail.EmailMessage in my VB code it says EmailMessage is not defined

What do I need to do from here? I have a database with names and email addresses. I want to make a page that will send a message out to all of thses people.

Thanks,
Jarrod