Go to the Yahoo! Groups site as indicated in your first E-mail sent by “nimbas moderator” (the link in blue will subscribe you automatically).
Please keep in mind that joining the NIMBAS Alumni Network is only possible, if you where invited by one of our Moderators.

You will get a second E-mail by "nimbas moderator".
This confirms your subscription.
Visit the NIMBAS Alumni Network Home page
http://groups.yahoo.com/group/nimbas and simply click on "sign in".

Go on
http://groups.yahoo.com/convwiz
On the bottom of the page, please enter under "Don't have a password? Forgot your password?" your E-mail Address, to which your invitation was send.
Click on "continue" and stay on this Site!

Before you can go on,
a third confirmation E-mail
(from YAHOO! Groups Notification,
Subject-Line:Authorization code)
will send you the code necessary to subscribe for a YAHOO! ID.
Please check your email for your authorization code.

Click on the blue link in your new E-mail and enter under your E-mail address the authorization code.

Click on "Register for YAHOO! ID now" and type in your details.
Be aware, that your YAHOO ID (Name) will be your name and the ALTERNATE E-MAIL ADDRESS your E-mail contact appearing in the NIMBAS Alumni Network.
However you are able to edit your ID card with full contact details.

Please take care, that you are taking out the arrow in the box next to "Contact me occasionally about special offers and Yahoo! Features"!