Have you tried restoring your CS3 Preferences yet?
There is no upgrade from CS3 as it is now 6 versions back from the current PS CC 2014. You would have to purchase CS6 outright or join the Creative Cloud Plan and pay monthly.
My error. I have CS6 (not cs3)and can not get it uploaded. I f I uninstall can I reinstall
I don't know what uploaded has to do with this. Do you mean the software is installed but not launching properly? Are you getting any error messages? Did you install from disks or by downloading it from the Creative Cloud site?
I down load from my computer which may be on Cloud. I get a long message
saying Photoshop Quit Unexpectedly:
Process: Adobe Photoshop CS6
Path: /Applications/Adobe Photoshop CS3/*/Adobe Photoshop
CS6.app/Contents/MacOS/Adobe Photoshop CS6
Version: 13.0.5 (126.96.36.199)
Code Type: X86-64 (Native)
Parent Process: launchd
Responsible: Adobe Photoshop CS6
User ID: 501
Date/Time: 2014-08-11 15:52:43.651 -0400
OS Version: Mac OS X 10.9.4 (13E28)
Report Version: 11
Anonymous UUID: DD70D0DD-D2C6-D436-1AAF-A239C8F3B2F8
Sleep/Wake UUID: E0AD7CBF-C659-4D4D-AD6D-5BEDB3ED608E
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000010