07-05-2011 11:18 PM
Hi and Welcome to the Forums!
If you have been synchronizing with a desktop PIM (e.g., Outlook), then your data is there. If you have done a backup, then you can do a restore:
If you previously installed and used BB Protect, then you can restore from there. If you've done none of this, then there is nothing to be done and you have migrated from the latter to the former of this old saying:
Backups, quite simply, are not optional.