use imgbb or cubeupload and upload your image. Open the image URL and then copy the image (not the url, like the actual image) then paste it in wasteof textbox. It's a pretty unclear process but jeffalo can't really afford a cdn to host images (once you understand how to upload an image, it's easier to do so)
On RiverBox you cannot really upload images either but you have a huge img button on the post modal instead of having to copypaste the image (just saying)
WOWZA it works thank you :D