Celtic Heroes

ok so how do i add a signature?! to be more brief and specific (yes, yes i am a noob)... i made a signature on www.siglaunch.com(a free signature engine) now i have the url, html, code but im confused on how i can attach it to my signature or in other words make it my signature...... i have tried multiple ways but failed

http://www.siglaunch.com/sigs/any/3/0/5 ... 6KJXUm.png



<a href="http://www.siglaunch.com/sigs/index.php"><img src="http://www.siglaunch.com/sigs/any/3/0/5 ... 6KJXUm.png" border="0"></a>

<img src="http://www.siglaunch.com/sigs/any/3/0/5 ... 6KJXUm.png" border="0">