Sometimes people don't install great software, such as the new Adobe Camera Raw Plug-In 3.7, because they're not exactly sure how. Even though you know you could look it up, other tasks seem to come first.
When Adobe released the 1.0 version of Photoshop Lightroom, they also posted Camera Raw Update 3.7. If you haven't done so already, this is an important plug-in for your to add to Photoshop. By doing so, you get an improved Camera Raw workspace, the latest camera support including the Nikon D40 and Pentax K10D, plus compatibility with Lightroom.
There are two ways you can update Camera Raw. Open Photoshop CS and use the Update Tool in the Help menu. Or you can download it and place it in the File Formats folder yourself. The file path is:
Hard Disc > Library > Application Support > Adobe > Plug-Ins > CS2 > File Formats
Regardless of which method you use, I highly recommend this update for Raw shooters. You can find out more by opening the Read Me file. And if you have Photoshop CS loaded on a Windows machine, you can download that version here.