Somewhat Advanced: HTTP/Web Server in VB.NET

I am developing a client's IT department into more of a self-suficient unit. This includes allowing their clients the ability to access information on various parts of the mechanical process over the web. Idealy, we don't want the client doing anything extra to make this happen. Currently the entire process automagically keeps track of itself in an Access database. I want to read and display data from this database on the web as well serve PDF "certificate" files over HTTP to their clients. I have deemed it best to create a server app that will reside on their office server and be available through the web. I really don't want to get into the pros and cons of this, all of that has been thought of and worked out, this is the way we have to go.

I am wondering if anyone can show me where to find an example of an HTTP server written in VB .NET.

I found one [available here], however, it doesn't support the POST method, which is a must as I will have to parse the POST information and modify the outputed page accordingly (access the database and display results as an HTML file or let the user download a file). I have tried programming the POST method into the program with very much trouble (which is why, I suspect, the original author hasn't got it done yet). It parses the POST syntax at the end of the HTTP header, but then freezes entirely when it calls my PostVarsCollection object nested inside the Structure HTTPConnection.

Any ideas/suggestions are most welcomed!!!! I can send/post my project files for you if you've looked at the original source [available here] and think you may be able to help.