The installation of Konqueror is simple: If you have KDE on your machine, you have Konqueror. If you do not have KDE on your system you can open up your package management system (Synaptic, Yumex, Rpmdrake) and do a search for KDE. Select the results, click apply, and KDE will be installed on your system.
If you are a little weary of attempting such a large installation, you can always download one of the distributions that include KDE. If you're a Ubuntu fan you can install Kubuntu as your OS. If you're a Fedora fan you can download the KDE-based Fedora (the same thing applies to most other major distributions).