1) As far as I can see the file is called ReEnterPBP.bas. For some reason you're trying to include ReEnterPBP-14.bas.

2) The compiler (PBP) adds an underscore in front of all variables and labels so the label Test becomes _Test in the compiled program. This is so that any variables and labels you create does not interfere with whatever system variables PBP creates internally. The interrupt declaration, ie this part...
Code:
ASM
INT_LIST  macro    ; IntSource,        Label,  Type, ResetFlag?
        INT_Handler   TMR1_INT,   _TEST,  PBP,  yes
    endm
    INT_CREATE               ; Creates the interrupt processor
ENDASM
...is, as you can see by ASM/ENDASM directives assembly code which is passed directly to the assembler. So the label needs (_test) needs to have the underscore infront of it here because once the assembler is invoked your Test: label is called _Test. I hope that makes sense.