How could I know that? Thanks for your reply...

Hello P.O..
Have you already extended the contest?

I thought I did. It mention something about five more days

You do? If you already did, it seems that I can't submit anymore because the "submit design" button is not showing on my part. So I don't know how I can submit my entry. I guess only the designer that submitted earlier are the only one allowed to submit another designs.