If you mean these ones: :shootme: :akimbo: :minigun: You can find the codes for them in the FAQ or by clicking the 'Smilies' link on the form used to make a post. If you mean some of the funkier ones, go to: http://www.mysmilies.com, download the smilie images and include them in your posts as images. To do this, you need a little web space to host the images on.
Not really. You could just copy the code as said on the page. (my smilies) But only as long as it's for personal use.