Sorry for this simple question.
How can i change kickoff menu icon in openSUSE 11.1 KDE 4.2.4 to KDE icon(K icon).

Thanks.

If you mean the Kickoff (default application launcher menu) icon, move/rename/(delete) /usr/share/icons/oxygen/scalable/places/start-here-branding.svg.
You should see the change next time you log in, or you can remove the widget and add it again from the Add Widgets... dialog. (Restarting plasma should also work: press Alt+F2, enter 'kquitapp plasma', Alt-F2, 'plasma').

Thanks.
Yup, i was looking for it.