One Option is to create an installer with the new files you created and have the files overwrite the old files.
Another option would be to create a launcher for your game in vb, have that launcher have a backgroundworker that would check your server for updates on launch. If updates are available have it download the update files to the root of the games location without an installer, just have it download the files and copy them to the right folders.
If this is a game just on your own PC, you can simply drag and drop the new built game over your old one and let the folders merge and files overwrite.
There are a lot of ways to do this, it just depends on the situation. Is it just a game on your computer? Is it a game other people have downloaded? how much trouble is the game worth to you? these kinds of things would make a big difference in what you decide to do in order to update.