eBay API C# function - get tracking information from eBay via API

I need a function in winforms C# .Net4 that grabs TRACKING NUMBERS FOR THE ITEMS I HAVE BOUGHT on eBay, via eBay API. More information: Function gets All orders that I have PLACED (Items that I bought -- I am the buyer; I don't care about the items which I have sold!) Goes over all orders one by one Checks if order was shipped by the seller, and if tracking information is available (tracking numbers are provided by the seller) Prints out ebay item number and the tracking number Please note: I need tracking items for the items that I have bought, not the ones that I sold I could have written it myself, but I don't know the API and the call which is used to get the tracking [login to view URL] is really easy if you know the API. My budget is $35