http://www.nikonchat.com/nikon-d7000-raw-photoshop/

Adobe Photoshop Elements 8?
I bought this software last year, my camera from a Nikon D80. Now I've upgraded to a nikon d7000 and now I find I can not open my photo when shooting in RAW, has anyone any suggestions.
Go to Adobe.com and check the download section of the latest Adobe Camera RAW, ACR. Make sure you are looking for the ACR to Elements 8. Then check to see if your camera is listed. If you can not find ACR, get your digital converter Nikon use the program to edit and convert TIFF files.
Unsupported Nikon RAWs / NEFs in Adobe Lightroom and Photoshop