ZeGamingCuber

I've been looking hard but I can really only find ones for old versions, like pre-1.4.... are there any for newer, or literally the latest version?

Thanks, adding fins worked.

So, I was trying to send a probe to Jool with a rocket that I used to send a probe to Duna, but once I separated two of its stages at ~10,000m in Kerbin's atmosphere it started spiraling out of control. It never did this when I was going to Duna, which makes no sense at all. Does anyone know what I'm doing wrong?