As you said it your self, the AP is relative to the "nearest" parent that has RP.
Parent in the sense that it contains the absolute positioned element, no matter on what level of the inclusion tree that happens. <div> asside is not a parent to your logo <div>, neither is one to footer_venue <div>.
background: none repeat scroll 0 0 #CC3333;
If footer_venue <div> was contained in <div> asside, it would work putting the RP to <div> asside, like you did. But that would ruin your layout, and set the top and left absolute positions relative to <div> asside box model
In short, you have to position a parent element if you want it to contain its absolute positioned child elements, much like you need to "declare" a height for a element, by establishing a new BFC (overflow:auto/hidden), if you want it to containts its floated child elements.