Thanks, Marc, Dwarden, Gopher John.
In looking through Info in those links, the question that kept dogging me was finally answered.
I see now that apparently while Javas might be referred to as Java 6 and Java 7, Etc., they really have a full version of their designations, which include a prefix of 1.
THAT is what had been throwing me off. I kept wondering, "How can 1.7.0.17 be the latest when a 6 and a 7 are higher than that?"
Okay, I got it now.
I'll consider this topic RESOLVED.