VDVsx,
Thanks. Now it is working. I installed manually the corresponding packages of version 4.6, for example, Qt-dbus, Qt-network. I was hoping to get a whole package of every modules but could find such thing. This "libqt4-maemo5-maemo5" is not a package there. Or I thought if I installed one module, other ones should have been installed because of dependencies, however they didn't get installed automatically.