Some Apps don't skin

So I have a question:

is there a posibility for thunderbird, skype, media player classic and miranda IM to set it uses default aero theme?

 

I installed wb's and everything skins normally but those apps except thunderbird (which has skinning issues by itself) have default classic windows style of currently applied skin.

When there is no skin applied they function normally with aero skinng, but there seems to be no possibility to set aero skin only for those 4-5 apps since th...