I recall using Digital ROC back in the PowerMac G5 days but now I cannot find it at all, so I assume I must have trashed it long ago. However, I agree totally with Marks comment about establishing a good black point and working from there with the other obvious adjustments as necessary. Recovering colour in a faded print is not very difficult at all without employing a plugin etc. Occasionally I will even use Auto Color on a separate layer in PS, which often provides a good starting point. From there it's a piece of cake, and I do love cake. When I'm presented with a restoration job usually the colour revival is the least of my concern. Somewhat off topic, but early last year I took on a job for the Rotary International Convention in Toronto. It amounted to 40 + images to restore and ready for printing. The most time consuming was a panoramic shot of the folks at the 1924 International convention, also in Toronto. The file I received was from a scan or scans of the original print which was not in good shape by any standards. I quickly discovered that when the scans were merged the operator was not aware of the intersection areas that needed to be fixed as well. However, after many days of working on the pano it was finally finished and all the files were sent along to the company that would be handling the printing and the final display. As I recall, the pano was printed 12' in length. All in all the restorations totaled almost three weeks of constant work, but apparently it was very well received by the Club and other viewers. Probably 8-10% of the prints were colour, and they were much easier to work with than most of the B&W prints.
Gary