Prior to getting started, make sure you or your IT administrator whitelists *wickr.com and email@example.com. This will ensure successful and timely delivery of activation & verification emails.
When first opening the Wickr Pro apps, you'll see a screen like this:
If you've been invited already, click the Sign In button and enter your email address:
If you've been sent an email like this, click the "Click here" links or enter the invitation code manually.
Create a password for your account!
You're in! You can now use Wickr Pro as everyone else is!