I can only add svg icons in qgis 2.0. How can i use png or jpeg or gif images as icons in qgis2.0?
link to site on how to do embed a jpeg or png in a svg file http://snorf.net/blog/2014/02/27/embedding-pngs-in-svg-markers-in-qgis/
This is currently not supported. The only way you are able to do this is to embed or link a png in a SVG file.
Adding support for loading other image formats shouldn't be too hard for a future version.