What program will open .CR2 Raw, Other than photoshop CS3?

Photoshop CS3 will not open up .CR2 Raw files for me at all, i have gone and downloaded the adobe camera raw plug in and tried installing it exactly how they told me to on the directions but it still wont open them, it keeps telling me there is an error because its a wrong file. So im looking for a new program to... show more Photoshop CS3 will not open up .CR2 Raw files for me at all, i have gone and downloaded the adobe camera raw plug in and tried installing it exactly how they told me to on the directions but it still wont open them, it keeps telling me there is an error because its a wrong file. So im looking for a new program to use , please help
Update: I Need the files to open so that i can edit them.
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