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when they wiped the BB they deleted all the apps also. Apps generally do not reload during a OS load unless they are the default RIM applications. You need to reload any apps you added. You can try upgrading the OS if the basic Apps are missing or simply check the apps using DM. You should be able to reload basic apps from there. Download desktop manager from rim , it's free. You can also download the OS for the BB. dont use any OS except the one for your model. BlackBerry - Support & Services
then go to downloads.