In functions.php replace this:
Code:
if ($counter%2==0) {
$post[backcolor]="{firstaltcolor}";
$post[bgclass] = "alt1";
} else {
$post[backcolor]="{secondaltcolor}";
$post[bgclass] = "alt2";
}]
with this:
Code:
if ($counter%2==0) {
$post[backcolor]="{postfirstalt}";
$post[bgclass] = "alt1";
} else {
$post[backcolor]="{postsecondalt}";
$post[bgclass] = "alt2";
}
Now create two replacement variables, {postfirstalt} and {postsecondalt}, and put whatever you want in there.