Hi all again, one question. I changed web hosts today, because of the old ones (phpnet.us) slow speed and downtime. My question is about the adsense account. Do I have to change anything in my account? I can't find much about this when I search the topic on google.

Your pub code should still be in your pages. No action required on your part.

You can actually use that code on more than one site. All tracking by Google is via the code they supplied you.

you don't have to change anything in your account.