Hi,
Here is a code snippet to add your logo in the footer. It displaus your logo if you have uploaded one, otherwise it will keep the actual credit in footer.
Copy this code in your functions file.
add_filter( 'tc_credits_display', 'my_credits_display' );
function my_credits_display($html) {
$logo_src = esc_url ( tc__f( '__get_option' , 'tc_logo_upload') ) ;
if ( empty($logo_src) )
return $html;
?>
<div class="span4 credits">
<?php
$credits = sprintf( '<p> · ? %1$s <a href="%2$s" title="%3$s" rel="bookmark">%4$s</a> · Designed by %5$s ·</p>',
esc_attr( date( 'Y' ) ),
esc_url( home_url() ),
esc_attr(get_bloginfo()),
'<img src="'.$logo_src.'" alt="'.esc_attr(get_bloginfo()).'">',
'<a href="'.TC_WEBSITE.'">Themes & Co</a>'
);
echo $credits;
?>
</div>
<?php
}
Hope this helps