I routinely upload multiple lists at one sitting and through the multi-step process lose track of which file I'm uploading. I generally name my upload file something similar to or the same as the list I'm populating. It would be tremendously helpful for the name of the file I am uploading to be displayed at each step of the process so I'm sure about which Constant Contact list name to choose for the upload.
Currently, once I've chosen the upload file, I don't see the name of that file again inside Constant Contact.