I have a Canon EOS 1000D and am using Photoshop CS4.
Every time I try opening it through PS I have a pop-up saying "could not complete your request because Photoshop does not recognize this type of file". And the option to "open in camera raw" in bridge is gray, so i can't select it.
I've updated my Camera Raw Plug-In to version 5.7. (which is supposed to be compatible) and I still have trouble opening my files - both through PS and Bridge.
I'm in desperate need of help!
As Camera Raw is a plug-in, I'm wondering if somehow you haven't replaced the plug-in in the proper directory...
From Photoshop's menu, choose Help - About Plug-in. Do you have just one Camera Raw entry showing? If so, click it. What version do you see?