newbie popup box II help needed

[dreli]

1) Script Title: Popup Box II

2) Script URL (on DD):http://www.dynamicdrive.com/dynamicindex11/abox2.htm

3) Describe problem:im trying to get this script the same way as the 2nd window does only to have an iFrame in it instead of just text. my question is
if it is possible and if so where in the code can i put the iframe?

thanks in advance