[balinor]

Hard code them into the menus themselves. For categories as an example, edit categories.tpl, remove these lines:

{capture name=menu}

{/capture}
{ include file="menu.tpl" dingbats="dingbats_categorie.gif" menu_title=$lng.lbl_categories menu_content=$smarty.capture.menu }

and then just hard-code the image:

[img]{$ImagesDir}/imagename.gif[/img]