QuickBooks integration

I want to post invoices from my app to Quickbooks desktop edition. I am looking for someone with QB integration experience. I would like a WPF exe written in VB.NET (or C#) targeting .NET v4.0. The invoice list to send to QB will be a list(of ) with appropriate properties like invoice number, date, amount, purchase order, etc. I will work with you to create the since I do not know all the fields that QB can import. I will have to add the code to your project to actually get the data to import, however we can set up an object to test during development. I will need complete source code when finished. This is part of a much larger project and may extend to other projects like QB Web integration and other vendor API integrations.