I see that the famous Onion emoticon pack is installed But why still keep the default phpbb emoticons? They just consume space and pushes back the Onion emoticons, which makes them absent in the Smilies' space during posting. Please delete them.

I thought of that and forgot too umm.. Ok, I'll edit those..

should I make less emoticons visible on the first page

yep, it's looking freaky. Limit the number of emoticons on the first page to 10.