Kevin, not sure what type of pruning you want to do.It is okay to prune the brown stuff but you don't want to cut the tops off or you will stop any new top growth.Most cherries also produce fruit from suckers, so leave some of those intact also. Now might be a good time for a shot of fertilizer and perhaps some epsom salt to perk them back up. By the way, how are those razzleberry's doing for you?

I wonder too, I cut a tomato plant down to the dirt but left the roots, this was about 3 weeks ago, and now its about 4 ft tall again already. I bet it would start producing more tomatos but my season will be over soon. (for toms anyways)

There is nothing wrong with pruning your plants "Pretty good". My opinion is that few people know how to properly do that and end up pruning them "Pretty bad". What you are trying to do is salvage a "rampant" plant that until now has had little attention to it's growing habit. At this point severe tophacking will comprmise the healthiest new growth of the plant and force the plant to send out more new growth at the expense of setting more fruit.

A better practice as t-bred suggested might be to remove the dead and diseased branches along the lower part of the main stem. You could also trim half of the lateral branches back to just beyond the fruit clusters or thin out (remove many) branches with only blossoms back to the main stem. If the plant is staked consider lowering the upper plant mass by curling the pruned lower stem along the ground and then restaking to allow you to reach the fruit easier.

There is nothing magical about the growing tip of the plant although for many varieties the lateral branches have weaker joints and may snap off if handled harshly. Otherwise any lateral branch could be trained up to replace the growing tip, even with most determinate varieties.