[Plugin: dTabs] Parameters not working?

I’m using Dtabs v1.4 with WP 3.0.1, Parameters do not seem to be working. I’m not getting any errors, just nothing happens.

I’m trying to get the tabs to fade between one another but nothing happens… I’m using
the default parameters below. Any ideas?

if (function_exists('dtab_list_tabs')) {
                                dtab_list_tabs('fadetype=js&fadetime=500&outputjs=1tabbar=id');
                            }