Just upload your jpgs to https://imgbox.com/
Once they’re uploaded there are some boxes you need to check. Family Safe content, Thumbnail size ( use a large one-and note that there are rectangle options lower-called re-size). You can ignore the other 2 boxes.
Hit the start upload button. Wait a few seconds. You’ll see a new screen. copy/paste the Links Only address. Paste it in the Audiogon window and wait a few seconds. Do them one at a time or it doesn't work well.