How to Get Condition Rate of different Condition Type

Hi Experts,

We are in process of Upgrading CRM 4. to CRM 7. I converting old IPC routines to new.

In Old IPC I can access any condition rate or value Condition Value formula like below:

Cond_value =this.getConditionRate(prItem,"4A01");

Suppose I have Condition type ZFPR and want to access values of conditon 4A01 in it, How I can get this in IPC CRM 7., because if I use above code its giving getConditonRate method undefined. Which is standard methods to access given Condition types value or rate

Urgent Help required.

Regards,

Abhishek