Well, it might be in minecraft.jar... and it might not.
It has a few hundred class files in it, but none of them have actual names. They all have names like: aaa.class, aaj.class, cv.class etc.
I think it is in there, it just changes the name of it for some reason. The names of class files that I put in there do not change though.
When editing the code in eclipse, all of the class files show their proper name, and those are the names that you use within the code.
By the way, thanks for sticking around this long. Sorry it's taking so long to figure it out. =/