It still baffles me how learned people who have computers still seek services of people to reload their blackberry OS or to do a Backup/Restore.
these things are stuffs you can do by yourself and its advisable to backup your device at least once a month, that will help you keep all your data safe even if the blackberry get nuked. you can as well get all your data transferred to a new blackberry in the case of theft or giving it out. checkout the simple steps involve here:
http://www.wasconet.com/how-to-update-your-blackberry-os/

You can get a detailed article on how to backup your BB contacts and update your OS ( with download links to all the software u need) @ http://.com/tutorials.php