Re: I have CS2. I shot RAW files with my Nikon D90 and now cannot open them in PS. I heard there was a plug-in to download for this, but cannot find it. Help?

You would need at least CS3 with ACR 4.6 to natively edit NEFs from a D90 in PS:

http://helpx.adobe.com/creative-suite/kb/camera-raw-plug-supported-cameras.html

It might also work to use the DNG Converter 4.6 or newer to convert the NEF files to DNGs and then those might open in your older CS2 ACR, but I’m not sure, since it’s a 9 year old program I haven’t used in years.

The DNG Converter can be found, here:

http://www.adobe.com/downloads/updates.html