To get the values to other frames either:
a) STORE the values in a temp file --> will cause lots of problems, so don't do this
OR
b) use sessions and simply REGISTER all the variables with the session, they will persist in all your files then, if called for correctly...
and just a piece of advice for the future: FRAMES ARE EVIL, don't use frames, they just make things more complicated and carry no advantages to the user.