I suppose that technically, the DW logo is copyrighted (or trademarked or whatever the correct term is), but I doubt they'll come after you if you make your own version of it to put on the front head of your kit. After all, Mike Portnoy got away with turning it upside down and putting it on the front head of his Tama kit a few years ago (the DW logo turned upside down will appear to spell out his initials: MP).
edit: Or did you mean Drummerworld, as pointed out above?
/me is confused