Vivian, thanks again for answering.
But I bilieve you are not understanding the problem here.
I've moved, period. Then I payed 10 bucks for the redirection. That means that the global tags bring the user to my new domain now, and that old links referring to my old blog, go directly to the new one.
I payed 10 bucks! If everyone did like me, WordPress.com would be rich. :-)
Now the problem is:
"WHEN YOU FIND A LINK, REFERRING TO MY OLD BLOG, ON A WEBSITE (EVEN A WORDPRESS TAG, OR A GOOGLE RESULT PAGE) AND YOU CLICK ON IT, IT DOESN'T GO TO MY NEW BLOG BECAUSE WORDPRESS.COM HAVE WRITTEN MY NEW DOMAIN WITHOUT THE "WWW".
IF YOU WRITE IT ON THE ADDRESS BAR WITHOUT THE "WWW" THE BROWSER CORRECTS IT, AND WORDPRESS HASN'T ANYTHING TO DO WITH IT.
The support already told me that they can't add the "www" (pretty dum, huh?). But the problem is that they can't UNDO the thing, and the visitors os my old blog (that enter because of the Google ranking) don't find ANY page! Not even the one where I say "Hey guys, I moved".
See the problem now? I'm loosing ALL my Google traffic. Before doint the redirection, at least 20% visited my new blog.
Thanks anyway for your time and thanks in advance to anyone that can help me.