Tectonics, weather and other processes

[SpacePioneer]

Other people might not say so but I have a tendency to avoid making worlds that are too Earthlike. It doesn't have to be exact though, and you're right, I probably shouldn't shoot for obsessive-level details with this (I mean, we can barely predict the weather a week ahead, extrapolating that out to years, decades or even up to millions of years to set something the way it is, its mainly all just guesswork, and I know that, so although I'm a bit of a perfectionist I can settle for "good enough" rather than "exactly what we would see in reality")

Also, I've looked up GPlates and from what I understand there is not a 64 bit version, only 32, so how can I use that? I'm looking at the 2.0, so maybe 1.0 had 64 bit support but I'd rather figure a way to use 2.0 than use an old version...
(I stand corrected, there is a 64 bit version...for Mac. But I use Windows 8, soo...)