First, click this: [You must be registered and logged in to see this link.]

Choose the game.
You'll see the code and below it said: "Code để chèn vào blog/forum bạn", you copy the link with .swf
For example , like: (Prize Catch game): [You must be registered and logged in to see this link.]

Write tag [flash] like:

Code:

[flash(400,400)]xxx.swf[/flash]

400,400 is the size.you can choose by yourself.
Enjoy.