thanks for the reply!
i didn't want to use tags..i didn't even know them before (same for jsp)
i just couldn't find the right elements to generate a4j:status and its facet :-/
the application.createComponent(...) is certainly useful, but which components to create? that's where i'm lost.
i can use all the other components like a4j:commandlinks(HtmlAjaxCommandLink) but this one i cannot get work.
oh my, now i see the facets of the UIComponent, i think that's what i need. right?
yup, just add the component you want to add to start or stop to facets map by corresponding name.
This proved to be enough to get me on the way of solving the problem!