Click the name of the currently displayed template to access the Template Manager (screenshot), and then click “Single” to select it for editing.
Within the WP Loop Box, you should see the Single Post Box; hover over this box until the down arrow appears to its right, then click that to expand the box.
Click show tray to view the list of green (aka “dependent”) boxes (see screenshot below).
Click Single Post Box → Thesis Post Image to add it to the active area of the Single Post Box; then drag it into your preferred location within that Box.
Click Save Template.
Example 2: Add Thumbnail to Home Template
Go to Skin Editor > HTML.
Make sure your Home template is displaying (if not, then click the name of the currently displayed template to access the Template Manager (screenshot), and then click “Home” to select it for editing).
Within the WP Loop Box, you should see the Home Post Box; hover over this box until the down arrow appears to its right, then click that to expand the box.
Click show tray to view the list of green (aka “dependent”) boxes (see screenshot below).
Click Home Post Box → Thesis Thumbnail Image to add it to the active area of the Home Post Box; then drag it into your preferred location within that Box.