To get them posted on the website you can go to a image-hosting website such as:
tinypic.com OR photobucket.com
You browse for your image on your computer so you can upload it to the website. After you uploaded it, you should get a link to your image. Then it's simple after that, just use this code below:
Code:
[IMG](url/link of image here)[/IMG]
If you need any help you can send me a private message.