Upgraded to 3.7 Beta - CP panel still old

[glenv]

Someone upgraded my site for me to 3.7 but I notice it still has the old Admin CP. How do I fix this please?

[Zachery]

What do you mean its the old admincp?

[glenv]

I have a new install on another domain of 3.7 Beta and the Admin CP is Gray tan something and the buttons in the menu are different.

I am attaching side by side CP screenshots. The new install is on the right.

[Steve Machol]

You can change the Admin CP style here:

Admin CP -> vBulletin Options -> Admin Control Panel Options -> Control Panel Style Folder

[glenv]

Danka much