Remove Top Level Categories Does Not Work

i am using newest wp 2.8.2. i have installed both ‘Top Level Categories’ and ‘Pathless Category Links’, but neither work

my url is http://www.djv2.com. right now if you go to http://www.djv2.com/music or http://www.djv2.com/events, it automatically appends /category/ to it

if i login into my wordpress admin panel > pages > and change the link for header to just /music/ or just /events/, i get 404 error when i try to visit http://www.djv2.com/music or http://www.djv2.com/events

any ideas? been messing around with it for about 30min no luck