$output = "Section 1:Section 2:Section3";
$output = explode(":", $output);
echo "<B>".$output[1]."</B>:".$output[2];
This is the easiest way if it is just the three things. Otherwise, you would have to create a loop to run through the entire array. (like if you had 5, 6 sections or more)
Oh, and one more thing, please do not post to more than one area... You may want to delete either this thread, or this one so that your answers are consolidated, and you don't get confused or confuse others.