Circtuit software help

Hey I'm wondering if anyone is familiar with the program:
National Instruments: Circuit Design Suite 10.1////Multisim

I am trying to implement a circuit with INA133 (I.O.A.) which is close to the INA121 (**broken link removed**

In the circuit program there are no pins for the feedback resistor to set the gain; which are usually pins 1 and 8. The data sheet will show you the pin layout at the top of page 3.

I am wondering how I would set the gain for the amplifier on the program in the same manner in which I've built the circuit (hardware).

thx in advance

i may have found my error... I am using the INA121 for my hardware and the INA133 in the software (recommended). But the gain for the INA133 may only be 1 as i see in the datasheet.

So, possibly new question:

Anyone know of a way i can closely model the INA121 on my program??