Yes it is and it's really easy.
Just post the smilie like you would post a normal picture.....
1. right click the smilie you wish to use
2. select 'copy image address'
3. paste this into your post (cntrl + v)
4. type [Img ] (without the space) before the address
5. and type [/Img ] (without the space) after the address
6. voila!





Molly