I can't get my signature to work :/ what am i doing wrong?

I try to add this code from My Realm:
<a href='http://thesettlers.ubi.com/myrealm' target='_blank'><img src='http://g2w.ubi.com/the-settlers-7/my-realm/public/en/gamecard/g/uid/01a416a7e28d0d2293e95ef842b9e773' width='504' height='102' border='0' /></a>

I add the ling into the signature place here on the forum settings, so it should auto do the signature for me... i try edit the code but no luck :/

Heeeelp