If you go to tinypic.com like I suggested and select resize to 17" monitor and then upload your pic, the second row will have the line that you need to copy and then type (or paste) here in the reply. I will show you here:
Now click the button on the bottom right corner of my post that says "Quote"--->
and you can see what I did to post this pic in your reply box.
I wonder if maybe your pic is just too big. Try the resize as I suggested and it will hopefully work.
This board will not say anything about "fail" or whatever if you try it like I explained.