You would need at least CS5/ACR 6.3 to work with your D7000 raw files.
Here is a list of what cameras need what CR version:
Here is a list of what applications will host what CR version:
You can currently buy CS6 for US$700 or CS6-Extended for $1000. CS6 is the last serial-number licensed version of PS and is only updated for new cameras via being able to hose the newest ACR version, but is not updated for newer OSes or newer large monitors or anything else, new.
Adobe’s current PS path is CC which is a subscription service. The most cost effective way to license it is the Photography Plan for US$10/month where the $700 CS6 price would be 70-months or 5 years and 10-months of subscription if the prices stayed the same, which it might not.
CC only works with OSX 10.7 and Win 7 or newer.
You might also be able to use the free DNG Converter to convert D7000 NEFs to DNGs and those might open in the very old ACR with CS2, but I’m not sure.
The DNG Converter is available on the Adobe Updates page:
…You might also be able to use the free DNG Converter to convert D7000 NEFs to DNGs and those might open in the very old ACR with CS2, but I’m not sure…
Doesn't Photoshop 9 (CS2) support ACR 3.x? ACR 2.4 was the first Camera Raw version to support DNGs.
Hi there .Many thanks for your help. Yes I downloaded latest dng converter applied this to the Nikon D7000raws, opened in CS2 and hey presto! it worked. your a genius , again thanks