Just go to this page: http://guildwork.com/characters/new enter your character name and server, and then follow the directions on the next page.
Guide:
Select our server and your full character name, then click proceed.
Follow the instructions on the page that follows
It should look like this after you've entered the code
Important! Make sure you go back to the add character to guildwork page and click on the blue finish button to save it. The next page should say you've added a character to guildwork.
Those who haven't done so yet, make sure you add your character to guildwork. This will allow us to track progress through the roster page http://apex.guildwork.com/_/roster
Proximo Admin replied
650 weeks ago