Perhaps you want to customize the User Account Page. You have multiple options. You can create custom user-profile.tpl.php file and link it into your site with complete control. Or you can have a bit less control and use the Display Suite Module and CSS.

If you need complete control of the content of the user Account Page, create of custom user-profile.tpl.php file, add it to your template directory and add code to your template.php to use the new user-profile.tpl.php file.

However, if your needs are simply to move things around in a minor way and hide or display some content from the Accounts Page, you may prefer to load Display Suite, select to adjust the user accounts page and make high level adjustments.

Once you use Display Suite, you may even find you really like using it to help doing adjustments and helping for format other pages.