To get pics in your post a good way is to host on imgur.com
You sign up with an email address - very easy. Imgur is a community so you can actually make your stuff public and interact with people on there - but I use it purely for hosting and keep my profile private.
Since I originally wrote this some aspects have changed slightly. They really want to be more of a social media site, rather than just an image hoster. I used to be able to do a short cut to my library, but now they make you go to their 'front page' before anything else when you visit the site.
So after signing in you need to click on your profile at the top right of the page and choose images to get to your library.
This is what your library looks like - you can also break it up into albums, but this works for me.
You can drag and drop directly onto this page from your desktop or a folder on your computer. You can do it with multiple images at the same time, or you can click 'add images' and hunt for them in the traditional way to upload.
When you click on an image in your library, this box pops up.
Choose the BBcode option and copy that.
Then come back to your Pitbull forum post and paste (Ctrl V) into your comment.
Then it will hotlink back to imgur and appear in your post. This also helps you get around the 5 photo limit on here. You can also post any size pic if you hot link, so you are not limited to the 1500px width or 1mb file size of the forum uploader. If you use the BB version it does an automatic resize that seems to work well. Imgur does also have some basic editing tools available.
If you find and image online you'd like to share, a lot of the time you can right click on it and 'copy image address'
Make a comment and paste the image address in it.
Then either side of that code you need to type (img) in front of it and (/img) behind it, but use the square brackets --> [.
(If you reply with quote to this comment, you will see what I mean re the brackets)
And presto..image shared.
It's also pretty good to use via phone. You can download an app and use it to upload from your phone library. I normally do that, but do my actual posting from the computer as I hate typing on the phone.