Dear Pamela:
It would seem that you are talking about my version, but I can't tell for sure. You mention the plants looking a horrible and you suggest making them green; I have done this, so maybe you are talking about Coleman's version, which is designed more for the supercomputer platform. Anyway, aesthetics are the last things on our minds for the Scriptbots sim, but the fact that it's open source is really it's best feature. I know about the Evolites sim, and it's great and all, with decent graphics, but I prefer the "natural" development of "intelligence" from simple rules.
As for making a save-load capable version available as compiled program, I feel that decision is up to Karpathy. Perhaps I will compile mine and release it, but as of now I'm not 100% sure that it's working as best as it can. I continue to work on it anyway. Sorry I can't offer anything better, tho.
JRHershey