MAFT,
Sorry I missed this post. I'm going to move it to the JFBConnect forum area after I post as it was accidentally posted in the JLinked support area.
Right now, we don't have any way to let users access older versions of JFBConnect. the 4.1.2 release is almost 8 months old now, which is a very long time with Facebook integration. There are many features in that release that wouldn't work as well as they would with a new release (or possibly not at all). I know PayPlans has some integration with JFBConnect, but I really don't know exactly what that integration is. Most of our underlying architecture has not changed since 4.1.2, so if things worked then, they should still work now. We've simply added more features and improvements since then.
If you are running into issues with JFBConnect v4.2.5 and PayPlans, let us know what they are and we'd be glad to look into it further and see how we can help.
Thanks,
Alex