Ok, I'd like to elaborate even further.
Star Traders is no longer called Star Traders, but Inner Space Shop, so the
part of the guide that mentions Star Traders needs to be updated.
However, there's a huge Catch-22 in that in order to GET into the shop,
you need to complete the quest for Spacesuit magic. But in order to get
THAT magic, you need:
1. Divers suit magic, by starting the quest in the Captain's Quarters in Tomorrowland.
2. After you have the diver magic, you need to finish at least the first Autopia
Quest Track magic for the blue racing car.
3. After you get a car, you pick up gas cans in the Autopia Quest Track
until it awards you a Driver's License.
4. So you're wearing a Diver pin, a Car pin, the License pin, now you can
start the Space Mountain Quest Deck for the Space suit pin.
5. Once you get your Space suit pin, you can get to Innerspace by either
the entrace on the Quest deck (where the space suits are hanging) or
by following the curve around to the "exit" while in the Innerspace Shrinking
machine area to get to the platform entrance.
6. Activate the suit when you're ready to step across the barrier, then
head to the "shrinking machine". Look for the "exit" icons by moving
your mouse near the machine and you'll exit into the room that has a
Spaceship with a hatch labeled "Inner Space Shop".
Once you're in the shop, the double-clicking on the "floating robot" mentioned
in the guide makes perfect sense. Instead of a typical cash register in
the other shops, it's the robot as the "register".
Fun, huh?