Dear Dr.
I too have I-Pad don't know which number, the latest one as well. To make a screen shot, like parrot said, hit the little circle button, only button you can physically press down on the screen that moves, and the power button at the same time. You should hear a click and screen will go black for a second. First time I did it I thought I blew the I-Pad up.
To post your photos in the forum, you do as you normally do, type in the box etccc... Below where you are typing there is the word attachments, next to that is a blank field then next to that is add file. Hit the add file and it will ask for existing or new. Choose existing and it will go to your camera roll. Then choose the screen shot that you want, then hit add file or insert.
If all else fails, go outside and scream murder and wait for some young person with a phone that is recording this ranting and ask them to help you. It worked for me