Start by logging into the AAS system. Your username is your email address.
Navigate to the event and click on register. You'll see the following page:
Fill in your details first and select "Continue". It is on the next page that you can register additional attendees.
Fill in your additional family names. To enjoy member rate, you must put your email address as the email address for all additional attendees.
When you pay using PayPal, you'll see this as the first screen. It shows you the total invoice value in Singapore dollars. Be sure to select the appropriate country at the top of the form to match the mailing address of the credit card you'll be using.
Any problems with registration, please contact AAS at aas@aasingapore.com or by phone at 6738 0371.