Facebook won't sync with my BlackBerry Tour Contacts from my yahoo account.
FB software Version 1.7 (latest version)
BBT Software Version 5.0.0.732
I also have gmail contacts in BB Contacts
I can't get mine to work either. I have the same OS as you on my Tour. Strangely, facebook synced with ONE of my contacts and that was it.
(then my phone crashed and I had to wipe everything, and now that contact won't even sync.) It's not super annoying for me at all, I don't care much about having pictures. It was just something cool.