KompoZer is a GTK application, it has nothing to do with KDE — though it can be installed on KDE, too. Komodo and the Kernel aren’t KDE applications either. ;-)
KompoZer 0.7.10 is not compatible with GTK ≥ 2.14, hence the crashes on some recent Linux distros like Ubuntu 8.10 and 9.04. Please upgrade to KompoZer 0.8.
Developers, translators, testers: please visit kompozer.sf.net if you want to contribute to this project.
If you like KompoZer, please consider making a donation to support this project. The current development needs your donations to keep going!