You need an account to host the images. Thats what most people can't seem to grasp. If you use yahoo email, you already have a service you can access.
http://www.flickr.com/ If not, you can sign up for an account there. Then uploading your pictures to the web is straightforward enough. Once you can see them on Flickr (or other hosting service) then accessing the link to the picture just requires finding it in the "photostream" which is nothing more than a last to first collection of all the images you uploaded. One can get more sophisticated and arrange the pictures into "sets" but it is not technically needed in order to link a picture on a forum.
if you click on a picture in your photostream, it is displayed on a preview page. If you then right click on the image, it gives options for what size image you want to view, in my case 500 or 640 or "original". Usually 640 is enough for a forum. Click on 640 and it displays a slightly larger picture than before and now right click on that and select "copy image location". Then in your post, click on the green "insert picture" icon, delete the http:\\ that is in it and paste the link you just copied (control+V), then click OK. This forum does not display a realtime copy of the picture in the post while you are writing the mesage. Some other forums do. But you should see some text that says IMG your link address /IMG with some extra formatting. If you see that then the picture will display when you submit the post.
There is a first time for anything...
