First off open an account with Photobucket.com, it is free and easy to use. When you have uploaded pictures to that account they appear as thumbnails, if you put your cursor on the thumbnail a drop down menu appears, just click on the "image code"or IMG code and it auto saves the link. Go to your post and "right click" and paste the link into your post , you will still only see the link but when you submit your post the images will be there.
Hope this helps
Mick