Chuck,
We generally don't put new features, no matter how small, into bug-fix releases. This change will be in the next minor release of JFBConnect, v4.3. Until then, you'll need to re-do the changes.
For our bug-fix releases we need to be able to focus on only the changes that are there to fix outstanding problems. If we add new features, it's always possible that will decrease stability for everyone and it's not something we'd like to do.
Fortunately, the 4.2.3 release is the last planned bug-fix release we have for the 4.2 series. The 4.3 release should be out in the August timeframe with new improvements, including the Register Link being able to point to Virtuemart.
Thanks for your understanding,
Alex