I use 64 bit Photoshop at 64 bit Windows 7.
Bridge shows raw files only in case if I put 32 bit version of Camera Raw.8bi in c:\Program Files\Common Files\Adobe\Plug-Ins\CS4\File Formats\ folder. But in that case 64 bit Photoshop can't open the file after I open it in Camera Raw and click "Open Image".
If I put 64 bit version of Camera Raw.8bi into that folder, Bridge displays files as generic icons, but when I double click at any file, it correctly opens Camera Raw window in Photoshop (64 bit).
Please, how to fix it? Or it's impossible because Bridge is 32 bit application and I need to use 32 bit Photoshop with it?