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Modifying the template

By default the plugin displays the trackbacks as an unordered list inside a div with the id "trackbackslist" with a h3 heading "Trackbacks" above the list Alternatively if you're comfortable with editing HTML & PHP you can add a file called trackbacks.php into your template folder and the plugin will use that to style this list.
The file trackbacks.php in the plugin folder contains the default code & is a good starting point for customising your own template. Copy it into your template folder and it will be used instead of the default file.