The Guild Roster is accessed by using the Guild Icon from the Menu bar.
My Guild Tab: includes the name of your
guild, any alliance you are in, your guild charter, website, check
box to show your guild title and the
button to resign from the guild.
Guild Roster Tab: lists your guild members
and allows you to search for a player in your guild by typing into
the bar and pressing the large blue gem. Includes the button to 'invite players' if your
character has the relative 'rank'. By clicking on the small blue gem
next to the guild
members name it opens the guild member detail screen where they
maybe promoted, kicked, have their title set etc.
Diplomacy Tab: Here is where you may search
for guilds to request/accept alliances or declare war on another
guild, clicking on the name of the guild will open the menu to
perform these actions if you have the relative 'rank' to do so.