As far as I know, and I looked in a lot of places and asked a lot of people, it is not possible.
VB forms are different then Access Forms and there is no conversion utility. There is an Ad In for VB that works like the form wizard in Access but you still have to do all the formating and code entry.
It is not all that hard getting VB forms to work with Access tables so you shouldn't have to much trouble making the conversion.