1st pic2nd picLogin to your cbox account.
Then go to "Smiles" on the Control Panel.
And click on "Customize Smiles".
Save the smileys you want onto your deskstop or any folders you wish to, and then upload to some host which host your pictures (prefer photobucket.com)
Paste the links onto the URL bar as shown above.
Note: Your link to the smileys must be a direct link. As in it ends with .gif or .jpg or any of the picture format to work. (See the 2nd picture)
Sorry if the instructions not clear enough
Thats how I figure it out when I wanna have smileys thats from sgforums