I am willing to give 2.9mil on SB1 for someone who can buy me something for 20$ Ill tell you what I would like if your willing to do it ;)
Do you see the button labeled 'Upload a File' beside (right side) the 'Post Reply' button? Click it and From there just upload the pictures and then you have options of what you want them to be when replied (Thumbnail or Full Image).
Just remember, when real money is transferred you can't scam. Which you shouldn't be doing at all since it is skyblock.