There are a couple of things we need to know before we can help much. When did you plant the Husky Red Cherry? How are the leaves turning brown? Do they turn yellow first? Do they have spots? Holes? Any other problem on the plant?

I'm not certain about the second problem...usually if they set fruit they eventually ripen. Can you tell us what variety you planted? Are you sure it wasn't a green ripening tomato (I can't think of hybrid seeds that are, but there are some heirlooms that are green tomatoes when ripe....)?

As for the third problem...if you can describe the leaves, and tell us what type of fertilizer you used, and what time of day you put it on, and how you water, that would be helpful. (But it truly does sound like the leaves are burnt from your basic description..)