Making the Lab X1 communicate with the Lab X2

[skimask]

I am very new to the world of programming, and am having trouble working with interrupts, specifically with this project I am working on.

The big question is...what else have you done so far that is remotely related to a project like this?

Upon pressing switch one or two on the Lab X1, either LED 2 or 3 will light up on the Lab X2 as long as the switches are pressed.

Then forget the interrupts and just 'make it work' without the interrupts, poll for the 'commands', wait for them, act on them, and keep going.
When that all works, THEN add the interrupts.

And when you do get around to adding interrupts, forget about having 2 PICs talk to each other with an interrupt based system. Make one PIC respond to a button press THRU an interrupt rather than just polling. Then make it send out a 'command' when interrupted by a button press.
Once you figure that out, it's a simple matter of getting a serial input to trigger an interrupt and do what you want.