You only need the invite code to set up a new account. If you have ever attached to Collatz in the past, you already have an account. Adding a new host doesn't require the invitation code. In other words, if you can post to this message board, you already have an account and don't need the invitation code. If a friend wants to join, you can contact me via PM or they can email me. My address is at the bottom of every page. (Yes, I get lots of spam in my email because of it.)