I have ported my old script for kdenlive 0.7 i would like know if it works or not for you :)

i am doing a gui with kdialog.

http://www.cli-apps.org/content/show.php/akw+(Automatic+Kdenlive+wesley+producer)?content=102619

here the version 0.3 + service menu for dolphin

http://www.kde-apps.org/content/show.php/akw-qt?content=104980

if someone is interested to use zenity there is always the akw script , for that you don't need of kdialog.

updated version...

now you have only to use

awk T1 T2 PAL 1

t1= time for picture
T2= time for transition
PAL|NTSC
1 aspect ratio.

a little video
http://www.youtube.com/watch?v=wDwX7RcMPAo

updated version 0.3 with a little fix