If this is the first time you are doing this, you must download (and accept and install when prompted) the following Provisioning Profile:
It is a legal, Apple-generated small file enabling your device to run the CalJ Beta binary. Without this file, the CalJ Beta app will remained locked for your device.
Next, you must download (and accept when prompted) the actual binary CalJ Beta application:
If your device does not accept the above link, please download again the Provisioning Profile above: it may have changed since you installed it (the Provisioning Profile is regenerated by Apple every time a new Beta Tester joins in).