Usually, hightlight bit you want, right click, brings up option to cut.
Change 'window' to site you want to post to.
When you are at bit you want to put it too, right click, paste will show, click, should be where you want..
Uploading pics. If on your 'putter, click 3rd from right icon. Screen that appears will let you go to your PC's pic. gallery. Once you've got pic. you want, click "upload", ( or button that lets, depending on browser).
You may need to change size of pic. to lowest setting, OM can only let e-mail size pics. to upload.
HTH.
Paul.