I wouldn't throw the camera out the window just yet.
You should be able to format the card using the camera menu. On some cameras ( not sure about yours ) you press the 'menu' button on the back which brings up a list on the camera screen. Perhaps a picture of tools or some such. Use the little scroll wheel dealy to navigate around the menu until you find the 'format card?' option. There should be a yes/no option.
By clicking on the User Name, you will requery the forum for that user. You will see everything that he or she has posted with that Mudcat name.
By clicking on the Thread Name, you will be sent to the Forum on that thread as if you selected it from the main Mudcat Forum page.
By clicking on the Subject, you will also go to the thread as if you selected it from the original Forum page, but also go directly to that particular message.
By clicking on the Date (Posted), you will dig out every message posted that day.
sj