1. None of the PIC's you mentioned have an OSCCAL register.
2. 8-bit PIC'ss have 8-bit data and either 12, 14 or 16 bit program words. The PIC's you have use 14-bit programs words.
3. When using a programmer, you can only see the program words (3FFF for unprogrammed locations) and EEPROM data (if present in device, FF is the erased state). You will not be able to see values of the SFR's unless you are using ICD.