Questions about Innovation Lab

1. How would i know, if my entry is accepted in innovation lab.
2. If we edit a post is it still eligible?
3. How we can give feedback on previous week topics of which date is over. I am just eager to share my views on topics i have missed what should i do?
4. What forum should we select for innovation lab post?
5. If we comment on admin's Innovation lab post, is it considered?

I think there must be FAQ's section, if you guide me to reach there i think my all questions would be answered.