Smilies

how do i added them to my new board?

Custom ones requires the smiles upgrade purchased or the ultimate plan

where do i find that to purchase it

Upgrades link in the bottom of your forum or in the admin area.

so you are trying to tell me everything costs to do on here except hosting and posting?

No. You can create a forum, boards, etc, no limits on size. Ads appear after 30 days.
There are certain features that you have to pay for though but nothing that stores the usage of the forum.