Connecting CB to aWeber

[socmedmktr]

On the Contest Burner – Edit Settings page, there is a tab for the email list. It promises that
“If enabled, we will submit the user's email address to your mailing list when they access your site to get their contest links”
That would be great and I’d like to do that. But it then says:
“Paste the html code for your newsletter opt-in subscription form here:”
But I’m not sure what “html code..... from” is. As an aWeber user, it is my understanding that sending an email to my listname@aweber.com is sufficient to add a subscriber, but I do have other bits of code and I’d like to capture people’s first name. Anyway, as usual, this has emerged late in the day, can anyone advise me what I need to put in that box ?

BWs
James