What Ned said. It's on a quite general level not compatible. If you can explain in more detail what issues you are having we may be able to provide a few pointers, but you should get used to the thought that it may never work...
Which camera were the Raw files taken with?
Supported cameras are listed here
Win 8 and CS3 should work as others have this combination. But you do need the correct camera raw. If a newer camera it may not be supported by ACR 4.7? or the last update. If that is the case you will either have to buy CS6 or convert you images to DNG with the free DNG converter.
I can't open any of my raw data files through Bridge.
Please define "can't" in more specific terms.
It's hard to help someone when one has to pull every little bit of information out of them. Put yourself in others' shoes. What would you need to know to help someone with the problem you're having? None of us can see your computer or read your thoughts.
What version of Adobe Camera Raw do you have?