Now that the new Lodestone site is up you can add your FF XIV character(s) to Guildwork. You'll need to be signed in to the Lodestone as well as Guildwork to complete this process.

Click on your Username (top right of this screen)
–> Dashboard
–> Characters Tab
–> Add Character to Guildwork
–> Choose Server (Ultros)
–> Enter your Character's Name (then click Proceed)
–> Follow the instructions to add your character to your Guildwork account