One of the recurring problems of developing web pages is testing on multiple browsers. Particularly challenging, given that I use a PC running Windows, is getting access to browsers that aren’t even available for Windows such as Safari and Konqueror.
One answer is to use one of the numerous services that host multiple OSs in such a way that you can test your pages remotely: yesterday I stumbled across BrowserPool, which allows you to connect (via a VNC client) to five different testing environments including Mac OSX and Linux. It’s a subscription service but there is a free option, although they reserve the right to kick you off at any time, without warning.
As for getting Konqueror working on a Windows PC, well it seems like the only current option is to install some sort of virtual Linux (eg. CygWin (tutorial), coLinux, or perhaps VMWare (tutorial)) and install KDE. It’s a bit involved, but it does work…slowly.