You go through the stomach to reach the throat (upper left).
Normally there will be a dialogue between you and the ship, explaining that it cannot travel up the throat to the mouth. You may have to click on the ship to open the doors, or you may have to return to the stomach and come back out again.
The 35th island (August 2013) will be Virus Hunter Island.
The game saves by itself.
You go out the way you came.
That is not part of the island quest.
The exit of the hand is at the upper left.
If you are stuck (cannot click to exit to the stomach), try rebooting Poptropica in your browser. If you are still stuck, try going to Home, then the Store, and get the Haunted House card, which is the only way initially to leave Virus Hunter Island. Several glitches were the result of programming errors that locked up browsers during the first month of the island's appearance.
You look for a piece of mail with the name Joe Stockholm on it.
He isn't named, so we don't know.
Well since the last island was Virus Hunter island, the next one will be Poptropilis Games 2013.
Go back to the stomach when you leave the hand. But the acid is too strong without your shield. Go to the upper left and back up the throat, and float up to the mouth (your shield is by Joe's gold tooth). Then you can dive through the grape juice and stomach acid in the stomach to reach the intestines, where you recover the scalpel.
When you are first in the heart, battling the virus, you have to double back out the way you came in, because going forward takes you prematurely to the lungs (you have no gravity core). Leave the heart at the upper left and go to the arm, where you will use the coagulator that you have just recovered. When you have completed the arm and the brain, return to the heart and travel through to the upper right, where you exit to the lungs (the final virus boss).
Select it from the island map. (Paid members only could play 8/29 to 9/12/2013.)