If you have the tools, time and desire, it's not to difficult (just time consuming) to manually uproot the front end and replant it in VB.
Inside VB you can setup "data access objects" and tie them to your back end and then link your fields to the data object.
But as pdebaets pointed out, you can effectively create a "stand alone" application complete with installation files. Microsoft does not have limitations on how you distribute "Run Time" applications and with some frosting on the front end (like disabling the Access startup splash and hiding the Access Application window) you can make it look like a stand alone app. This path is MUCH easier than moving to VB.