When you reply, look at the second button from the right, top row, just above the “post reply” window. See that? On the far left is “font Type,” then “font size,” etc.? Then the second o the lest one over is the tree with the up arrow next to it. Hit that button.
That’ll open a box somewhere on screen that says “image upload,” like so:
Images must be of the type, jpg, jpeg, gif, png, and have a maximum file size of 500KB
Hit the “browse” capsule there on the right. That’ll open a “file upload” box somewhere else on your screen. You should recognize the files in that box as stuff on your computer. Navigate in that box to find the photo you want to upload to the board. Double-click on it.
The “path” to the photo will now be inside the space next to that “browse” pill in the first box you opened. Hit OK.
yet another box will open saying “Please be patient while the image is being uploaded to the server.” Hit OK again. (What choice do you have, right?)
Then–if the photo you picked is not too big–it’ll show up here, like so: