If you have hosted account and you want to change it to normal account,
then this will definitely help you,
You can upgrade or change from adsense hosted account to Normal account easily.
1. First of all you need to login in you google adsense account.
2. On the Home tab, visit the Account settings page.
3. In the “Access and authorization” section, next to “Only host sites are allowed to show ads for your account,” click edit.
4. On the “Show ads on other websites” page that appears, enter the URL of the site where you plan to show ads.
5. Click Submit.
Note: Now PLACE THE CODE in your blog/website that you are going to submit before submitting url in above 4 step.
Google will manually review your application. You can watch video that will help you.