I'm going to move your thread to the proper forum ( LG Optimus S) so you could get the best advice for your problem.

 

I don't understand why you would load an LG Ally ROM onto an LG Optimus S. Of course it's not going to work. It's a different phone.

Your description of the problem is too vague for me to help. You need to provide more details. I have no idea what you mean by "install" or "it went successfully" (since obviously it wasn't successful), etc. Did you root it? Did you install a custom recovery? Which one? Exactly what file are you trying to install where and how?

 

If your on zvd try cm9 or miui if on zvj try ginger rom or Dante rom if on zvh try Hydro rom you can see wat base and you are in about phone all these roms are on android central