OB not using WB skin

You need to open the OB properties, highlight the bar you are using (If the OB theme has multiple bars you will have to do it for each part).  Look over in the first tabbed part.  You will see the option to Change skin.  Click on that and a new menu will open.  Checkmark the radio box for the third option *use skin from windowblinds*. 

It doesn't work for every single skin, but it does for most.