There are a couple ways to post pictures:
As Attachments:
1) After writing your post look below your comment area and you will see a button called Manage Attachments.
2) Click on the button and you will see 4 areas to upload load files.
3) Once you choose the image from your computer, click on the "Upload Image button".
4) Once the image is uploaded you will see the image name under "Current Attachments"
5) Click on the Close Window button and the bottom and post your image. I will include one at the bottom:
As a link (URL):
The Second way to post an image from and existing URL web address:
1) First find the picture on the webpage and right click your mouse over it. Click on "Properties" at the bottom of the dropdown window.
2) Copy the entire address (URL) of the picture. It will look like this:
http://whisky.com/images/whiskylogoA.gif
3) In your reply to this post you will see an icon that looks like a mountain.
Click on it and post the address that you copied for your picture.
Attached Thumbnails