I'm a newbie when it comes to working with workflows in the XML RPC and can't quite seem to wrap my mind around how to get it working.

I'm trying to process a purchase order from a quote all the way to invoiced but can't seem to figure out how to do this with the XML RPC using workflows. Can someone show me a working example of how to use the workflows and pass data to them such as how to take a purchase order that has been marked approved and receive it partially in stock? I was able to take it from quote to confirmed with "purchase_confirm" but that didn't require any special data to be passed other than the database ID.

Thanks in advance!