Interrupt vector

I need to creare on my flash two different and independent application:
0x00000-0x7FFF : diagnostic application
0x10000-0x1FFFF: main application

I use, in diagnostic appl. , the call:

((void (huge *) (void)) 0x010000) ();

but the main appl. don't work. I think to have problem with the interrupt vector table.
What is the correct code to do?

Thanks