I manually updated my WordPress to version 2.8.1. Then I went and updated it to 2.8.2 when that version was released. I'm currently using version 2.8.2. However, on my admin/dashboard screen it says, you're using version 2.8.2, but there's an update button that says version 2.8.1. Additionally, across the top of the dashboard it's saying "WordPress 2.8.1 is available: update now". I'm at version 2.8.2! It's just very annoying seeing these things given the fact I am at 2.8.2. Why would it want to update backward? Any thoughts as to why this happened?