Extra space in form designer sign up form

So I put the signup form on the homepage, and there is extra space in the form I’d like to get rid of so things can look nice and tight.

Screenshot (client’s uncomfortable showing the site right now)

Anyway to do this?

Also I’d like to know if 1)it’s possible to move the “Go” button next to the email field, and 2) if it’s possible to customize the button so it looks less…Windows 95.

Thanks in advance!

http://wordpress.org/extend/plugins/constant-contact-api/