That's a great question! If you were referring to https://rosetta.jiveon.com/, then this is a Jive-n environment. In general, Jive-x is an external community (e.g. an internet accessible site, like the Jive Community here) whereas Jive-n is an internal community without public access. The particular version you're on is the Jive Cloud Winter release (8c5.3), but we are moving to a new versioning system to make it easier to figure out which version you're on. Future versions will follow the format of year.version, so the upcoming release will be 2015.2 (the 2 is because this will be the second release this year).
Additional documentation and discussions around this are available here:
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And specifically for the upcoming versions of Jive Cloud:
Let me know if you have any other questions on this.
Thanks. I knew what each version was for, I guess I was just hoping those, on our side, that had the installation setup chose the correct version. I appreciate the info. For anyone else in the future, is there a way to tell directly if your on N or X other than it's use?