Change domain name of 3 wordpress website at the same host

I have a host at ipage where my main domain is [login to view URL], and I also have other 5 domains at the same host. I've got 3 websites running at this host, 3 wordpress websites, installed inside individual folders... something like this: [login to view URL] - this domains is ok, I manage to change the site url to [login to view URL] (without the /site1) [login to view URL] - actually I'm stealth pointing the [login to view URL] to [login to view URL] (but I want to change the url to [login to view URL] and also change the permalinks, pictures, db and everything else) [login to view URL] - same case from [login to view URL] WHAT I NEED? I need to change [login to view URL] to [login to view URL] and keep the permalinks and everything else to [login to view URL] when the user navigates sees the structure like [login to view URL] I want the same thing to [login to view URL]