Great tutorial Stringy, and very nicely illustrated!
There is a slick little feature that I like to use in your third step -- resizing the image (highlighted below in purple):
By checking "resize" and selecting one of the options to the right, you can control image size as it appears on the forum. Smaller, of course opens faster for those on dial-up but lacks detail that a larger size offers.
For example, this 320 x 240 picture of Hobie's new bungee hook works well:
But for more detail one might select the 640 x 480 presentation as in this Hobie kayak wake shot: