I tried the kvirc mailing list, but it seems rather dead. You guys however seem to know your way around both qt and kde so maybe you can give some clues:
I did this:
I downloaded sources from www.kvirc.net. I have libqt3c102-mt, libqt3-dev and kde developement files installed.
Install libqt3-compat-headers too.
../ui/kvi_frame.cpp:56:22: qobjcoll.h: No such file or directory
Jeroen