how do I add an email signup on about page

Hi there

I've managed to add email signup boxes after posts, and in an hello bar, by adding widget areas (as explained by brian gardner on his website), and using the extended news plugin.

However, I cannot seem to find anywhere any information on how I can add an email signup form in the middle of a page (eg about page).

Can anyone please point me in the right direction?

Thank you so much

Laura

A page that shows what I've managed to add so far: http://www.momgoesonline.com/hello-world/