You will first need to install BlackBerry App World. (Your BlackBerry may need to be updated to version 4.5 or higher. You will also need a service plan that allows you to access the BlackBerry Browser.)
Once you have BlackBerry App World installed, you may be prompted to create an account to manage your apps. You can then search for "VCU" to find the VCU Mobile app. Once you've found the VCU Mobile app, you can install it by clicking Download. (You may need to enter the username and password for the account you created for BlackBerry App World.)
You will need to reboot your BlackBerry to complete the installation. Once you've rebooted, VCU Mobile should appear among your other apps.