A question about classess.

Question

 My code recently grew to a non-acceptable amount (1000+ lines) and it was getting hard to naviagate. Coming off from Visual Basic I used to be able to just plop all my variables, into a module. I have about 50 lines of those alone. So I figured I could toss those in a "class" and call it a day. Well, of course not. My other Main class is no longer picking them up. Perhaps, someone could tell me what is going on?

 I'd also appreciate it if someone could tell me how to call my void methods from a separate class, it'd be greatly valued!