Issues with hustle optin display in sidebar

Hi, I really want to use hustle but I have two issues that I don't seem able to resolve. One is that the email addresses don't pull through to Mailchimp correctly - at least I don't think they do.

Secondly, my optin on the sidebar of my blog posts does not show correctly - the form field boxes are all squashed up and display side by side rather than stacked.

I must be doing something wrong. Please help.