To post an image, just start a normal post like you always do, and click on the image icon up above the Posting text box (the picture icon is third from the right). From there, you can browse through your computer, find the file you want, and upload it to your post. Browser then has quite a few options for sizing and placing the image.
As far as labels go for this images and what not, just label them 'Inspiration', and then if you also want to link them to a particular story, give them a second label that is the working title of your story.
We'll try this out and see how it works.
Later.