The lcd defines are the same. It's hooked up on PORTB. I did not change defines.
I've added the two .bas instant interrupt files, added the asm code and changed all the interrupt statement to the instant interrupt. I have no ideia where the problem is located to.. i'm still trying to do so..

I still have some doubts about instant interrupts and timer using, like reloading and also configuring Option_reg or intcon...

did not you really read anything wrong in the code posted?

Thanks for the attention Darrel.