one last thing since it my first animation for design crowd.. how can I able to submit as png since my file is .fla and .swf?? I know I can upload for .swf after submit design first..

Since DesignCrowd only allows you to upload a static JPG file, please upload a screen shot from your animation, and then upload the video to YouTube or Vimeo with a private link (please don't make public, but you don't need to add a password.) Then include the YouTube or Vimeo link in your "rationale/description" comments.

Done upload.. However, there was issue when I click submit after add source files. But in my list, it show that I done upload. Let me know if you got it.. thanks..