1. Their isn't a suggestion section. Just this bug section
2. Quick Reply should be added :/ Admin CP -> General -> Messages & Emails -> Configuration -> Allow Quick Reply : Yes
3. Let people have sigs. Admin CP -> Users & Groups -> Users -> User Options -> Allow Signatures : Yes
4. Looks like this skin was take off hitskin. You could at least change the logo so it doesn't look like you didn't touch the display at all.....