I just published the final version on my hammer map.
http://forums.thinking.withportals.com/downloads.php?view=detail&df_id=2450

So I want to remove the "work in progress" entry.
http://forums.thinking.withportals.com/downloads.php?view=detail&df_id=2438

I don't know how to do... Can someone help me ?

The correct way of doing that is to sent a pm to the global moderators:
forums.thinking.withportals.com/the-team.html

I'll do it for your right now.