adding ssr banner

[vinnie_a72]

I have seen post that claim that adding the banner is a link that has to be added. I understand that we need a certain number of posts before it can be added. I have the picture already saved on my computer, I just dont know how to insert it.

Question 1
how many posts do i need before i can add it

question 2
how do i add it when i get that certain number of posts

vince