Honestly you don't want to sync fb and your contacts. I use my phone both for business ,family, and friends. So I have detailed and correct records. People on FB don't necessarily create correct information on FB. Nothing like having a pic of your client get replaced with a pic of flower or their dead grandma because that is what they are currently using as their profile pic. If you want to connect your facebook friends in your contacts just put a link to the URL in your notes. Much safer on your data.
Not sure if the OP got what he needed but there is a way to link two contacts in your phone together. If you have someone in your phone listed as Samantha, and then you sync your FB contacts and that same person is repeated as Sam....so you have two different entries for the same person. Simply click on one of those entries, click options, select edit, click options again, select join, then select which contact you want joined our merged with this one.
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i gave up, i have that extra security layer on my fb that requires fb to text me a passcode whenever i add a new device or application...they never sent it for my droid 3 so i gave up.
i had this same problem and did not see any option to re sync my facebook contacts. so what i ended up doing was going through my contact list and made sure all of my contacts were named correctly (matched the facebook contact) then i went and deleted the facebook account from my phone and then readded it. all the contacts sync'd up and all is good now.
for people having problems with using the correct picture, you can edit your contact and select teh picture that you want to use. you'll be prompted if you want to use that pic from now on and that's it.
there's also the join and separate functions from within a contact if FB messes up a contact, etc.