The Sneak Peek was from December 2 to December 19, 2010. You could not really beat it - you got a certain amount of time to look for Nessie, and if you found her, you got a prize.
There was no solution to the Sneak Peek -- it just showed the first part of the island.
To beat thee sneak peak you have to be the first person to click your left button on the mouse.
No. The "sneak peek" was only from December 2 to December 19, 2010. After that, the island was open to members and closed to anyone else. If your avatar was still on the island, you may have been able to play the "find Nessie" game, but only until January 18, 2011.
They are on the hill above the ticket booth, overlooking the Loch, next to the old castle. They are not a part of the quest, but were used during the sneak peek of the island, where users attempted to spot Nessie.
It is on the hill above the ticket booth. It is not a part of the quest, but was part of the sneak peek of Cryptids Island, where players would try to spot Nessie. The dog at the right side would bark and Nessie would appear on the far side of the waterway.
Peek.
You can find a sneak peek of Sunrise in the book "Long Shadows", the sneak peek is at the last pages of the book.
There are images at the Poptropica and Wordpress blogs. (see the related question)
Youtube
If you mean the song in the sneak peek of season 7 then it is called "Beside You" by Marianas Trench.
a yugioh sneak peek is when a certain shop holds a tournament for the release of a new booster pack.
sneak peek