You should follow the pinned topic for testing zeta_brouzouf instead of [v0.8.3] guide, which is globally the same guide, but better up-to-date.
Anyway, steps 5 and 6 are the same for the 2 guides. To check each step:
Testing Step 5 (is my identity published?)
Have a look at http://twiced.fr:9101/wot/lookup/toearc. As you can see, there is a result. So, your identity is published. You can even see you have been signed by 2 other people (others field).
Testing Step 6 (is my join request published?)
Unfortunately … you have no way to check it for now. I haven’t developed any API method for now. However, I can tell you that you should send it again: as admin of my node, I do not see your membership in my database.
Hope it helps 