I finally started Aht Urghan, today. I've had it for awhile, but didn't feel like going. My first two attempts were a failure:

1) I forgot to go back to the Tenshodo after the quest to get the boarding permit. This realization didn't come to me until after I paid and boarded the ship.

2) I got made it to Whitegate, but just wanted to set my HP and warp back to Jueno. Couldn't find HP, so I went to my moghouse and changed jobs. Due to lots of sleepiness I didn't notice that I wasn't asked to set my HP until AFTER I warped to Jueno.

Today, I finally made it safely, and started the missions. I'm excited.