photos

you just submit one, and it's randomly picked from the image gallery. I've seen mine a few times

but how do you just "submit" one?

Upload it here and make sure you put 2004 in the top window.
Just use a short name (shotone), no symblols (&%#@*) and keep it 800x600 jpg or smaller.
It'll be loaded by Flyaway and put into rotation.

https://flyawaysimulation.com/images/upload/

I tried and then it said that the filetype is not supported.

Make sure the file is JPEG

I am new to computers Could you explain what JPEG means.

Download this (4.0 free) and set it for jpg or jpeg, size you screenshots 800x600 with:

http://www.wisdom-soft.com/products/screenhunter_free.htm

http://www.irfanview.com/main_download_engl.htm Free

Thanks 😀