Despite the general lack of targeted icy satellite observations (save the Rhea and Prometheus observations mentioned below), a few icy satellite "Opnavs" have shown up on the raw images page. These images were designed for optical navigation of the spacecraft, but they are still quite useful for scientific purposes.
The best of bunch is shown above. This image of Tethys shows Odysseus impact basin along the terminator. A few smaller craters are visible within the basin. Note the appearance of the rim of this basin. Also note the relative "smoothness" of the plains to the southeast of Odysseus. This view has a resolution of 3 km/pixel.
Additional images include: