I have successfully figured out a way to backup your ota and 3rd party apps. One would ask... why? The answer is if you lose your blackberry, upgrade to another blackberry or you decide you want to wipe your current blackberry to upgrade fresh to a newer os version you can easily restore these application without re-downloading or finding them.
You can find the easy directions on my website. Kradest.com
scroll down to How To: Backup Blackberry OTA and 3rd party applications