look at http://ez.no/manual/user/everyday#Tags :
(moves soon into the new Documantation: http://ez.no/developer/ez_publish_3/documentation/day_to_day_use
<object id="id"[ align="left|right|center" size="small|medium|large" class="foo" view="embed|text_linked" href="link url" target="_self|_blank"]/> where 'id' should be an existing eZ object id and all other attributes are optional. Attributes 'href' and 'target' are used to make object(image) as link.