Amazon Sample code converted C# to VB.NET

Amazon has sample code posted in C# to Sign Soap Messages with X.501 Certificates. All of my code is in VB.NET and I have been trying to get this working for a while with no success. Amazon will require all api calls to be signed by Aug 15. I just need some sample code in VB that follows the same logic as the C# code that amazon has posted. The sample code for C# is titled Product Advertising API Signed Requests Sample Code - C# SOAP The link to where it can be downloaded from is [login to view URL]