One: You are engaging in software piracy when you ask for a cracked patch. If you are legitimately able to have access to the patches because of a maintenance agreement then you can simply download the patches yourself.
That comment about the cracked patch has made me personally far less likely to assist you completely.
Two: I will say, "Yes" it is possible. I will not give you the steps but assuming you have skills with the tool and the foundations skills required by the profession you will be able to figure this out.
Three: LoadRunner has been able to record HTTP conversations, the communication foundation for web services, via proxy wince LoadRunner version 5.02, which was available in 1998. That capability is retained even in the most current release. That is going to be your key.
Four: Because you operate in the cracked software universe which is a stain on the whole performance testing profession you do not get the explicit steps that may well have been provided. Good luck to you on this issue and may your next software audit go well.
Don't be a crack head. It has long term career and social consequences. You are introducing substantial financial risk into a profession designed from the outset to identify, eliminate, manage and control risks. Your behavior is running counter to your profession