Yo! To submit a fanfiction go to the "submit" drop down menu at the top of the page. Select "submit a art" Where it says "Which file?" select add text. And you can type there or copy/paste the text into there. :3
Smilies? Under each "add comment" Thing there's an "emoticon" link. That'll show you most all the smilies. :3 some of them such as
are automatic. others you have to use : : on the end. such as
which is :*hug*: without the asteriks.