As my exponentials in TikZ plot a parabolic style function, do I install CVS version, and how?

I'm very new to LaTeX.

I have read Is plotting exponential graphs a known source of bugs in TikZ? and implemented the code Jake supplied and this fixed the current problem. Thanks Jake :).

On this same page and in other forums people have mentioned a CVS install, should I take this step? I don't really know what it is as I use MikTex 2.9 and it says TikZ is current, yet my exponential graphs are the only one's that break. I am a math teacher/tutor and trying to use LaTeX for all my documents now, it's a big learning curve but the results are worth it. So will a CVS install be of greater benefit? And if so, how do I install this with the MikTeX Manager, or else wise.

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Welcome to TeX.sx! You don't have to sign with your name since it automatically appears in the lower right corner of your post. – Joseph Wright Aug 18 '12 at 18:52

@Therese You can also get the CVS version here : http://perso.mines-albi.fr/~gaborit/latex/tikz-pgf.html – Alain Matthes Aug 18 '12 at 19:26