The At World's End game is a navigational game. You move through several web screens by clicking within the graphics, sprinkled with an assortment of movie clips and graphic pop up messages. A floating compass can be used as a navigational tool to move you back should you need to return to a particular screen. (As you progress the compass points fill with thumbnail pictures that you can click on.)
You basically, click on people to "talk" to them, go to places and collect items (pieces of 8). Pirates respect a certain hierarchy, so you have to collect the pieces in a particular order.
When you've collected them all, you'll sit in your pirate throne, well find your hat there at any rate, and open the treasure box.
To start, Click on the middle (door area) of the shack.
More in white
Read and close any pop up messages. Continue to click in same middle area. Talk with Tia again and had into the light. You'll arrive in Singapore.
Click on the guy in the middle with the map. A framed picture of jack appears, click on jack.
You move to a new screen. Talk to Tia and Jack, then head to Port Royal.
Click on first piece of eight. Then had to shipwreck cove.
Chat with Jack
Click on scallywags in correct order
Sri Sumbhajee
chevall
lady ching
jocard
villanueva
corsair
Chat with Barbosa, and follow him to Jack.
Jack will give you your last coin
Click on your throne. Your pirate hat will materialize on it.
Click your hat to open the prize box.
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I'll let everyone know. 
I guess we just have to wait for more than the pirate flag! 
