http://wiki.answers.com/Q/How_do_you_beat_Astro_Knights_Island_on_Poptropica numbers 7-16
You get tickets in the garbage can.
The pig is down in the underground spider cave under Main Street. (There is an open hole near the Pop Art Museum.)
To open Poseidon's door you have to get the starfish from his statue* and offer it to him at his temple on the table by the door. *Statue is in the building of greek statues on main street.
you go to main street with your ticket and you give it to the lady next to the Gate door that is slightly open.
You should be on Main Street. (Remember that if you're not sure where you are, you can check your Map!) Go all the way to the right until you come across a sign that says "Early Poptropica". Click on the sign to go there. Go right again and you should arrive at Early Poptropica. Then you cannot open the tower.
You get the toolkit ( includes screwdriver) on top of the first building on Main Street.
The Haunted House is in the Poptropica store. Select the card there, then open it from your item bag, where it is under "Store Items." *The haunted house on Ghost Story Island is to the right of the Inn.
There are doors to open on almost every island on Poptropica. Specify an island name and you may find an answer.
the code is open
it spells open
'Open'.
There is an open manhole on the sidewalk when you first enter early poptropica. Go down and past the HUGE spider, and go through the maze until you find the egg. There is a shortcut back. Climb up the rope on the highest level.
the hover craft in poptropica is in the top of the mill to open it jump on the spikes