cannot install skype for linux ubuntu

[katerina s]

I try to download skype from http://www.skype.com/intl/en/download/skype/linux/choose/ and i cant do it. my first question is which of those programs do i choose?
    * Ubuntu 7.04+
    * Debian Etch
    * Xandros
    * Dynamic
      Static
      Static OSS
    * Fedora 7
      Fedora Core 6
    * OpenSUSE 10+
    * Mandriva
    * Centos
second question after i finish downloading the help wizard dosn't shows up. why?
third question. what do i do with the files that are already saved in my computer?
/home/gregory/Desktop/skype-debian_2.0.0.72-1_i386.deb
/home/gregory/Desktop/skype-2.0.0.72-fc5.i586.rpm
sorry for my english. i am from greece. if you have instructions in GREEK it would be better
please give me simple instructions i am a new user of linux

ProblemType: Bug
Architecture: i386
Date: Tue Oct 28 12:06:31 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/bin/file-roller
NonfreeKernelModules: nvidia ath_hal
Package: file-roller 2.22.3-0ubuntu1
PackageArchitecture: i386
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: file-roller
Uname: Linux 2.6.24-19-generic i686

[Chris Coulson (chrisccoulson)]

Thank you for taking the time to report this issue and helping to make Ubuntu better. Examining the information you have given us, this does not appear to be a bug report so we are closing it and converting it to a question in the support tracker. We appreciate the difficulties you are facing, but it would make more sense to raise problems you are having in the support tracker at https://answers.launchpad.net/ubuntu if you are uncertain if they are bugs. For help on reporting bugs, see https://help.ubuntu.com/community/ReportingBugs .