A problem with qt

[ryo <ryo@spiriel.nu>]

Recently I tried to compile the latest version of kvirc and was told it 
couldn't find qt headers so recently I've been trying to upgrade qt and sort 
things out. Yesterday, liquid stopped working and kvirc is randomly crashing. 
I'd like to get my qt libs all installed and working and I'd like configure 
scripts to be able to find them!
Here's the relevant stuff I have installed, if it's of any use:

ii  libarts1-qt    1.0.2-0        aRts Sound system (qt/x11 support libraries)
ii  libqt2         2.3.1-22       Qt GUI Library (runtime version).
ii  libqt2-mt      2.3.1-22       Qt GUI Library (runtime threaded version).
ii  libqt3         3.1.1+cvs.2002 Qt GUI Library (runtime files)
iU  libqt3-dev     3.1.1+cvs.2002 Qt GUI development files
ii  libqt3-mt      3.1.1+cvs.2002 Qt GUI Library (Threaded runtime version)
ii  libqtcups2     2.0-4          Qt interface library for CUPS
iU  qt3-tools      3.1.1+cvs.2002 Qt GUI Designer and other Qt3 based tools
ii  qtcups         2.0-4          Qt front-end for CUPS.

I'm not very experienced with libraries, dependancies, etc.
Thanks in advance