SAFE Network - Alpha 2 : How to get on the test network.

Huge rise in the number of people wanting to get in early and play around with the SAFE Network test nets. Here is a quick HOW TO to get you up and running.

is it possible to mine maidsafecoin or safecoin at this stage?

I feel like I've done more than enough reading to get trust level 1 status, but I am still not receiving an invitation token.