You must reset your password (even if you know it's the right one) before you can sign into the community.
Thanks to the upgrade, there's an issue with passwords and signing in. The good news is that you can click here: http://community.grandparents.com/index.php?/lostpassword/ to change your password (it'll let you reuse your old one).
If you can't reach the email address connected to your account then please contact the admin at email@example.com and I'll help you sort it out.
We've removed the extra step that required you to go to the full-page editor to access the anonymous post option. Now, you can reply to a post and toggle the button to post anonymous (see photo below).
Read more on anonymous posting here:
In short, the mods can see who posts as anonymous, we moderate anonymous posts the same as revealed posts, you can reply anonymously to your own topic, you may report anonymous posts.