yes I2C slave address for the DS1337 is defined in the header file.Enclosing the header file and library file for the same.
With respect to the 5V i2c bus used by the Arduino, when i looked at the DS1337 datasheet, it can possibly work with 1.8, 3.3 and 5.5 V all, to perform all the functionalities that a RTC can, but its typical voltage is 3.3 V. I had tried with both, but none of them worked.
and with respect to using PULL-UP resistor while using INTA and INTB , i think when i am not using them at present, it must not bother my main code or functionalities of the RTC.