A: You click the New user account-link. Here you fill in your ingame name, the password you want to use for Pong, the Muffin Password and your class and press Create account. It is very important that you spell your name just the way you spell it ingame, otherwise the invitation addon will fail to invite you.
A: The Muffin Password is written in the Pong-thread on the forum. It is only to be known by members of Muffin Militia. If you for some reason can't read the forum, please ask Clarice or an Officer/Fortune Cookie for the password.
A: You will see all the raids that are currently active on the front page, if you want to see all raids, including old ones, you click the Events-link in the menu. Click on the event of your choice, this will take you to the eventview. Here are some information about the raid and a list of participants so far, grouped by class. At the bottom of the page is the signup-link, click it. You are now at the event signup, here you have a textbox for entering some additional information about your signup, you also have a checkbox to allow you to sign as extra. When you are done you click the signup button and then you are signed for the chosen event.
To read the Pong RSS feed you need an aggregator, users of the Opera internet browser has one integrated in the browser, other users can either download additional software or use a webbased aggregator, such as Google Reader.
For those of you who really have to know when new events are planned wherever you are, there are also Java based aggregators for cell phones (I'm using FoCuS myself, works like a charm).
If you want to try the Pong RSS, the adress is http://pong.muffinmilitia.net/rss.php This document will look like crap in an ordinary browser, only aggregators can make sense of it.