Quick question

How do you withdraw entries? I had one that I updated but I couldn't figure out how to withdraw the former version.
On a somewhat related note, is there a way to delete comments? I posted a comment earlier and for some reason it posted that comment like 5 times

Withdraw entries:
1. Hover over "Me".
2. Click "My designs".
3. Click the withdraw button (bottom right) of your entry.
4. Click Yes.

There seem to be no way of deleting comments as of now.