You can move the lights so they are behind the objects but you won't get that "hair light" effect or the "rays of light" effect or the "light wrap" effect. Each of these effects are created by other optical phenomena.
The best you can do with just the Invigorator is to angle the lights to get a "rim light" effect where the highlights are right at the edges of the objects. It looks pretty good but it's not one of these other effects.
Each of the other effects can be achieved by using other plug-ins such as "Shine" or "Light Wrap".