[ssbmg]

I got my FB and Exchange contacts to link by first syncing with the Exchange server, then going to "Updates and Events" under the HTC "People" menu. Once there I hit "Menu" to log in to my FB account and hit "Update". After logged in, a button appeared that said something to the effect of "35 contacts to link with FB" which I clicked and then my contacts linked up. It seemed to be very data intensive as my phone was almost unusable for a couple of hours while it was updating all of the contacts/content. Finally, I had to go through and link all of my exchange contact manually that did not have exact matching names. Hope this helps.