Sorry I have got computer problems which I still have not yet sorted out, so sorry for the slow reply.
can you check that other midi programs can read your midi keyboard. try kmidimon? I am not sure what this is you should see horizontal lines every time you press a note on your keyboard if your midi keyboard is sending data.
you could try comping from the svn source see
http://sourceforge.net/apps/mediawiki/pianobooster/index.php?title=Frequently_Asked_Questions#How_do_I_get_the_very_latest_code_from_subversionLouis