We'll create fresh WordPress site with FeedBurner Footer SlideUp installed. You have 20 minutes to test the plugin after that site we'll be deleted.
Footer Slideup Form is one of the best ways to ask your user to subscribe to your list without any interruption or blocking and this plugin does exactly that. It adds an FeedBurner subscribe sliding form in the footer of your WordPress blog.
I use and recommend AWeber over Feedburner for RSS to email but my blog readers wanted to have Slideup plugin for Feedburner like I have for AWeber.