Packetmanager (Tasma => System => Package Manager). There is a search-field at the top.
Bluefish is already available in the contrib-repository (add http://paketler.pardus.org.tr/contrib-2007/pisi-index.xml.bz2 as a repository to the package manager).
Another webdev package is Quanta. It is available in the standard repository with the name kde-webdev.
Requests for software can be made at http://bugs.pardus.org.tr