1. Search for 'which distro'
2. Open up konsole, su into root, type 'konqueror'
3. Not really, is there a reason you need to specify directory?
4. Yeh, under configuration menu where you can find mandrake control center there are gui apps for urpmi for installation and removal.
5. Just read the
wiki. Tools like urpmi, and really gentoo's portage, debians apt-get make installation pain free.