Yes, its flash based and usually stays on top of backdrop and menu with 800 x 600 and 1024 x 768 resolution. Its more convinient on higher resolution settings.
Apologises for any inconvinience hop Tom could settle this matter for you and others.
btw, if u r running firefox, u can use flashblock. but this will block all flash animation from playing.
if u need to see the flash just click the "play" icon on the blocked flash.
Ok,found this article about how to make twin muffler/exhaust system that is consist of s-flow and straight flow at the same time.
but the problem is i dont know where to find the parts and if i can use another part...