Most of my pics are too large and the website will not upload. I just use a free pic resizer and reduce the size; then they upload fine. Seems like I tell the resizer to reduce it to 450 by ? and it automatically picks the proper other number.

The forum will not let you upload the same pic twice. You have to resize it to post again; or maybe changing the name will do it too - do not quite remember. So if you need to respond to another post later with the same pic you will need to remember.