Replace iContact with Vertical Response

A client’s WordPress site is using Genesis-Agency Child 1.0.1 for the theme. The home page, weloveyourtaxes.com, is made up of widgets. The newsletter sign-up feature on the home page is not working (iContact account cancelled months ago). Would like to get it back up and running using a form code from Vertical Response. Looks like I need to change “home-top-right” or “textwidget”. Not sure what I should replace with a working form.

Also, looks like there was two plugins installed: Newsletter and Contact Form 7. They might be in use for the home page newsletter sign-up and/or Contact Us page.