If you're having trouble with the size of your pictures there are several ways to resize them. Here are a couple:
https://www.lotuseuropa.org/LotusForum/index.php?topic=1379.0https://www.youtube.com/watch?v=O_55eg00H-wIf you're having trouble with the "mechanics" of posting:
After you press the "Reply" button or you start a new thread, to post the picture, click on "Attachments and other options" below the message box.
Under "Attach:", click on the "Choose File" button and a file browser will come up.
Click on the picture to attach to your post and click "Open."
The file name will be filled in the box next to the "Choose File" button.
When you post, your picture will be attached to your post.
Good luck!