Your JomSocial version shouldn't have anything to do with it. The code above simply updates our posting logic to work for JomSocial 3.2. It's possible that change was necessary for JomSocial 3.1 as well, but we're still investigating that.
The code change, however, leaves older compatibility going back to JomSocial 2.8 intact. So, if you're using 2.8-3.2, you should be good to go.
but it looks like it has stopped posting to facebook completely.
Can you explain this? What posting was working before that isn't working anymore? My understanding from the above was that the status updates created in JomSocial were never being posted to Facebook. Were some getting through? Is there some other posts your talking about that are now not working after the change?
Let me know any more information you can about what is, and isn't, working now, and how that compares to before the change in the other thread.
Also, it never hurts to know... what version of JomSocial and Joomla are you using?
Thanks,
Alex