I'm going to opening the doors of my website to beta testers very soon, so I'd like to incorporate some sort of bug/issue/defect tracking software. Hosted or PHP script is fine. I need to make sure it's very easy for users to report their issues, so it would be great if there was a way to click a link on the page and have the user report it right there - ajax style. And of course, I need all the basic back-end stuff for the developers to login and fix and see the issues. Does anyone know of any php script or hosted service like this? Thanks!