Thanks for the suggestions, I will check them out.
Basically, I have an advertiser on one of my local sites, who has store deals every week, and wants to update with a new banner each time. It's a hassle for me to do it all the time. I would suggest he ftp it up and replace the old one each time, but he is a non-techie.
So I just want something simple for him to login and upload or drag and drop the new banner each time, himself.