Adobe has updated the Camera Raw plug-in for Photoshop CS2 to v3.5. The only change since v3.4 appears to be support for the RAW files from five new digital compact and SLR cameras, including the Nikon D2Xs and Sony Alpha DSLR-A100. Adobe DNG Converter has also been updated to v3.5 (the Mac version of DNG Converter is now a Universal Binary). Follow a link below to access the appropriate download for your system.
Camera Raw 3.6 is due out sometime this fall, and will include RAW file processing support for the Nikon D80 and Canon EOS Digital Rebel XTi/400D, says a note on the Adobe Camera Raw main page. While Adobe will on occasion slip in beta-level code for new models one Camera Raw version before they officially support those models, a quick test here suggests that isn't the case with Camera Raw 3.5 and RAW files from either the D80 or Digital Rebel XTi/400D.