Hi,
For images, there are a few ways that you could upload them.
1. You could post the images on a image hosting site like imgur or photobucket and these sites will provide you with the bbcode for the image that you would just copy and paste into your post. '
2. If the image is posted on google or some other place that is not a image hosting website, copy the link and paste it in the window that opens when you click on
3. If the image is on your computer click on 'Go Advanced' when posting, at the top of the text box there is a paperclip, clicking that will open up a window that will prompt you to select the files needed. Once you hit upload, click on the paperclip again and select the attachment that you just uploaded. It should place the image in your post with