This is actually really easy. You just put your cursor where you want the image to go and then go through the Uploading proccess, including inserting it into post. Or if you prefer, you can upload all the images at once, then put your cursor where you want the image to go, click to open the Upload box, click on the Media Library tab, find the image, click Show, and then hit Insert in post. If it ends up being off by a line or so you can either drag it (in the visual editor) or you can cut the code, then paste it where you want. Format alignment as usual.
This works on every theme but Monotone and Duotone as far as I'm aware, and it'll certainly work on that theme. It's less work than it sounds like.