You need to click on the line of code in the IMG box to the right of the picture, where it says "LInks to share this photo", it will say "copied". Pull up TG and put your cursor in the post box, right click and hit "paste", a line of code will appear. Click on "preview post" and your pic will be there. Finish copying and pasting the pics you want and hit "add reply".
Nice arrows, BTW!