myDSL Extensions (deprecated) :: How exactly do you work the dsl extensions

hey guys
i just got back into linux and dsl has always been my choice
now that this new .dsl extensions have come into play
im totally lost at what to do
i have a 0.7.0 dsl version
i saw something about going into an /optional directory?

n/m i found it in the fluxbox menu

original here.