I'm sorry, but that really isn't a question we can answer! :laugh:
We have no idea of your requirement, or of how close the existing project is to that, so we really can't give you any specific ideas to modify it.
However, I will assume you want just the very basics.
If the existing project is in VB, then just open it's project file (or solution) in VS - it may have to convert it to the version you are using, but VS is pretty good about such things. You can then look at the code, and decide where you need to change things.
If it isn't in VB, then either you need to translate it to VB (which may be an intensive process, though
http://www.developerfusion.com/tools/convert/csharp-to-vb/[
^] may help, or include a refernece to the project in your own as an external DLL / EXE file and use it's classes.