CSA is publishing the FB information only for the last 30 days and for the coming 30 days (-30 days + 30 days).
Correct way to synchronize to publish all FB information is to use the FB synchronization and to create a FB job.
CSA will copy all appointments to target, but when viewing the FB information the following will happen:
OWA and Outlook 2007 will not look up the FB info directly but will request it via Availability Manager and the FB info will be generated by the Availability Manager.
Outlook 2003 however will access the PF store directly and will look up the FB information there, but the CSA will populate the FB for 60 days only.
For more information please also see multiple KB articles which explain how calendar sync and FB sync are working and what are the differences.