Your desire to have a VB interface with your Arduino requires several steps of learning that would be difficult to include in a single post. Because this thread seems to be completed you really need to start another thread in a more appropriate category of this forum eg. Interfacing w/ Software on the Computer. If you create a thread there and name it something along the lines "Interface Arduino to VB for the beginner" I will attempt to answer some of your questions, just be sure to have Visual Studio on a PC that you have access to and tell us what experience you have with VB.