Brent,
I either load them into my gallery or photo bucket and then link to them. If you put them in the gallery, just click on the one you want to put in the post and expand it. Under the picture will be the URL line and to the right is a button that says cut to clipboard. Click that and then go to your post and when you are ready to put in the picture just use the Edit menu and paste or the CTRL V method.
Ron