@KayleighRobyn97,
This is one of those things that definitely require a picture. While you can't use the forum's software, you can use one of the popular online image posting websites. I use
www.photobucket.com.
Register there, it's easy.
Then while you are on the website, click "Upload".
When the pic is loaded, (just a moment), click "library". That is the spot on Photobucket where all your pics will be held.
When you go to "library", you will see your pic. Click on the pic twice. Now you will come to a screen where the pic is large, and there will be several web addresses on the side.
Click on the one that says "Image". There will be a yellow line saying "copied". That means the Image address of your pic is now on your computer's clipboard.
Then come here, start a post, press Ctrl-V (or Paste), and the image should appear on your A2K post.
Good luck.