fivestar works but without theme

i installed the fivestar 5.x-1.5 module and the Voting APi 5.x-1.5
in drupal 5.1 with the standard garland theme

in contenttype menu for story and the 'image module' i activated the five star rating CCK field,
i set the number of stars to 5,
fivestar display style is = stars and average,
widget location (teaser) = below the teaser body,
widget location full node = below the node body

i can rate nodes - so it works but only with radiobuttons and an standard html submit button
no ajax and no pictures with stars are showing up

what am i missing ?