I see mine syncing every once in a while but my contacts never hold the data. The pic and "link" disappear randomly every once in a while. I'll check the messed up contact and half the time the link is there and half the time it's not.
I got mines to sync but the sync is still broken in the app, you have to leave the screen on in the lock screen settings and open the fb app in settings and go to sync and just let the phone sync without leaving that screen or the app it took my phone roughly 30 mins but it synced contacts I did it in both the beta and the non beta fb apps. ill be glad when facebook releases their app already tired of this Microsoft app
Sedp23's method worked for me.
I plugged in the phone, turned the Screen dim to 15 mins and waited, tapping the phone to keep it alive until it finished.
How can I do that from within the calendar app? I am not able to switch events off, or select only contacts (no birthdays) from syncing on the Facebook app settings.
The latest (MS) Facebook beta seems to have some sync fixes. I've seen it slide in at intervals whilst using the app recently, and it actually seems to complete every time now.