Sociable show up twice in my single post page. Help!!!

I have installed Sociable and played around with it for a while. I’ve found out that this wonderful plug-in meet my needs. I have only one major problem in which I have spend a lot of hours to resolve. Unfortunately I could not find any solution. Maybe this is the right place to ask some experts 🙂

Problem: I want to have The Sociable to appear only on single posts in my blog. That is no problem. But the real challenge is to decide where it should be placed on the page. I want it to appear just below the post meta where I have my tags but it always appear above. I have reviewed all the details under the settings for the plugin but can’t figure it out. I have played around with these two codes from the developer’s Web site hoping to find a solution:

<?php if (function_exists('sociable_html')) {
    echo sociable_html();
} ?>

<?php if (function_exists('sociable_html')) {
    echo sociable_html(Array("Reddit", "del.icio.us"));
} ?>

I tried them on Single.php (In which I guess must be the template for single posts), but without the expected results. It shows up, but its appear twice. How can I get rid of that?

Here is a single post on my blog:
Sir Alex Ferguson to step down/

If anyone can see what mistakes I may have done, I’ll appreciate if I can get a solution with some short recipe.

Thanks in advance!

Andy