rositajuurinen on "Adding mailchimp pop up???"

I have trying a dozen different ways to add a nice simple email subscriber pop up and it seems impossible. I added 5 different plugins but no success. Now I made the code with mailchimp but it seem to be unclear where to paste it? I tried already with header and footer plugin but no success I dont understand how to add the code to domain root.Tried and failed.
Is there any EASY way to add a subscriber pop up to your blog, anykind of ??? My theme is cicero.

Thanks a lot!