I'm not sure what it means seedfork, it does sound like the jpegs are saved in RGB mode but that could be another way of saying the same thing as something else.
It seems the CMYK (CYMK?) is no longer being supported for Windows 8 but are you using Windows 8 MR? If those files are on the Canon Powershot S5is (that's what the flickr forum is for)which was launched in 2004, a lot of programmes drop support for versions 10 years old.
The Canon site has drivers and software downloads, service and support plus almost anything you might want.
http://www.usa.canon.com/cusa/...
There's a lot of info in the FAQ under service and support but don't forget to click on the 'more' link.
