wildyard

When in the window to type your post, scroll down to the box below that says Additional Options. Scroll past Miscellaneous Options to the Attach Files section. Click the box that says Manage Attachments.
This will open a new window that lets you attach multiple photos from your computer. Select your photos and then scroll left to right on the bar at the bottom and it will show a bar to click on that will attach your files.
Return to the typing window and click Submit Reply. Ta Daaaaa... your photos should be attached. You might have a problem if your file is too large. I always edit my photos to a smaller size when saving them.
If the photo is from my phone, if it was able to send it via e-mail, it is already resized.