The ability to Edit a wiki page now requires three things:
cookies must be enabled for your browser
a username
a password
To register your username and password, please send an email to one of the XPSDOrganizers.
The login code is still in it's infancy. The way it works is like this:
click on edit
enter your username and password
if successful, you'll be in edit mode
I have tested the new code on the following browsers:
