How to post pictures on a website.
First register an account
You will then need to check your email address and click the link sent to you. This is done to prevent spammers from making accounts.
Now Login to your account
Once you are logged in you should be at this screen
Now click on the "add a new file" link or "upload" link.
Once you do that you should see this screen
Now click the browse button and find the file you want to add.
Once you have it click the "upload files" button. It should take a second and then you will see this screen:

Now just copy and paste the code into your CL post. and you have a working picture.
[IMG TAGS] button at the top. This will give you the code to paste into your CL post.