3. May I reiterate that Rick is the only person who works on this program? You can't expect development to proceed at Photoshop's pace when it's just one guy. He also can't support older operating systems without stalling all development on modern versions of the program; Windows 7 has been out for 4 years and can be had for a very reasonable price online. If you're disallowed from upgrading due to a workplace issue, just buy a secondhand laptop with Windows 7 on it - again, at a very reasonable price.