change optin form and integrate it to autoresponder

First go here: [login to view URL] I like way the area where you "opt-in" has the opt-in button on the right, and not below. But I have Aweber, and because they just had an ddos attack, I have Get Response too. And both companies do not offer a button on the right like that. Can you put a button on the right and then integrate it to Get Response? The next thing is, what if I want a different style or color button? Thanks much, Andrew