Change of hosting

Well I have change my blog of hostin I move all the archives and I copy the MySQL DataBases and copy to de new Hosting. But now when I go to the new hosting in the index all is good but when I clic in the title of the news to see the full article it goes to the older hosting.

I change de URL in de Database in the yable “wp-opcions” and I put the new but it continuos going to the older hosting.

I dont nkow what to do.