So that anyone who may also be having this problem, I am posting the fix (Provided by Mr. Darrel Taylor -- Thanks):

"With older versions of PicBasic Pro, you should not use the CONFIG (no underscores) directive in your code.
You can with PBP3, but it looks like you haven’t upgraded yet.

The 18F4515 uses the older __CONFIG directives.
Look in the P18F4515.inc file in the c:\program files\microchip\mpasm suite folder for the available options.
But I think you want …

ASM
__CONFIG _CONFIG1H, _OSC_INTIO67_1H & _FCMEN_OFF_1H & _IESO_OFF_1H
__CONFIG _CONFIG2L, _PWRT_ON_2L & _BOREN_OFF_2L
__CONFIG _CONFIG2H, _WDT_OFF_2H
__CONFIG _CONFIG3H, _CCP2MX_PORTC_3H & _PBADEN_OFF_3H & _LPT1OSC_OFF_3H & _MCLRE_ON_3H
__CONFIG _CONFIG4L, _STVREN_ON_4L & _LVP_OFF_4L & _XINST_OFF_4L
ENDASM"

I changed to the old config directives and 1: it compiled correctly and 2: it works! For the record PBP 2.60A is the version I am using.