I do not have the option of picking my guild on the Warcraft Uploader. Not sure what I need to do to fix this issue.
Is this retail or classic? You may need to ask your GM to invite you to the guild’s page.
Any non retail guild is manually managed and needs to be maintained by the GM. Retail guilds can be automatically managed, but need to be updated often to keep the roster up to date.
Azrael.