I did a quick search using ASK.COM web browser (my favorite for getting answers) Photoshop Problems with Yosemite and also Photoshop CS3 Problems with yosemite
Here are some of the threads that came up just on first page -- those sites, particularly ADOBE Forums may help you and others with photoshop problems.
Illustrator CS3 crashes after Yosemite upgrade | Adobe Community ...
forums.adobe.com/thread/1610653
Photoshop CS5: Not working in Yosemite (Java Runtime)
feedback.photoshop.com/photoshop_family/topics/photoshop-cs5-not-working-i...
5 days ago ... This reply was created from a merged topic originally titled MacOS 10.10 Yosemite and Photoshop CS3. How do I get my Photoshop CS3 to run ..
OS X 10.10 Yosemite: Will Adobe software work? | conrad chavez ...
blog.conradchavez.com/2014/10/16/os-x-10-10-yosemite-will-adobe-software-w...
Oct 16, 2014 ... It is not clear where the problem is or if there is any workaround. ... Although Photoshop CS3–CS5 were not extensively tested on Yosemite by ...
Photoshop CS5: “An unexpected and unrecoverable problem has ...
feedback.photoshop.com/photoshop_family/topics/problems-with-photoshop-cs...
Oct 18, 2014 ... I have a new problem with Photoshop and I wonder if you could help resolve it as I am ... Just upgraded my iMac 27 to OS to Yosemite version 10.10. ... I have CS3, CS4 and CS5 running on a clean installation of Yosemite.