Flash Games... D:

How come I can't display flash in my posts?

[flash width=500 height=400]http://www107.sakura.ne.jp/~moemoe/cg/swf/school.swf[/flash]

it always looks like this...

I've tried every option for hosting games on the forum and nothing worked.

I think I need to fix the code for the forum stuff. There are a few things that don't work x_x