I know that a lot of people will hate me for saying it, but the fastest and easiest way IMO to upload photos on any forum is through Imgur.com
Make an account, click upload, drag and drop photos into internet browser window, and input the link that says for use on forums.
PIP is good, but may be a little hard to figure out if you aren't all that computer savvy. The upside to PIP though is that the pictures will always be on the site since it is hosted here, meaning that if Imgur or whatever site goes down your pictures wont disappear!
Red 1988 GT under restoration!
( ͡° ͜ʖ ͡°)