use this blue arrow to browse files on your device and follow instructions
click on the icon in the reply box header, it opens a small window;
click the browse button and you should see the files on your computer displayed in a small window headed "FILE UPLOAD" - navigate to the file (picture) that you want and click it - that file name will display near the bottom of that small window - click "open" and that window will close the click "ADD FILE FROM PC" and that uploads to Tman-click "ALL DONE" and finish your post. I can do it on this old XP machine and I am almost computer illterate;
note you can add several pictures by repeating the process before clicking all done
and note that the pictures need to be in an appropriate kind of file I use "Paint" to resize and to change the picture to "JPEG", pictures straight from the camera won't post because "the file is too large".
On that upload window there is a "Hide Help" button that no longer works and that is the problem Iphone uses have because the "help" covers the "all done" button.
Hope this makes sense and that if it does, it helps someone, I like seeing pictures.