The topics will be announced in a thread called “Week ___ Topic thread” or close enough to that you will get the general idea.
You post the link to your entry in that thread.
ONLY the link to your entry. Nothing else goes in that thread. If you want to respond to someone else, go to their LJ or the Green Room. Otherwise that thread can get really cluttered really quickly and no one wants that.
The amount of time you have to complete each topic will be announced in that thread. It varies.