Problem with opening the Xibo Installer start screen.

It sounds like your XAMPP installation didn't work correctly... did you have to create the htdocs folder? What do you see when it directs you to localhost/xampp?

Yes, we were instructed to copy and then paste the htdocs into a newly created folder, which we did.
As soon as we enter "http://localhost/xibo" into the address bar, we see a blank white page, on top it says in bold letters "Indes of /xibo" and then below theres a link called "Parent Directory" which directs us to "http://localhost/xampp" and below this it says "Apache/2.2.17 (Win32) mod_ssl/2.2.17 OpenSSL/0.9.8o PHP/5.3.4 mod_perl/2.0.4 Perl/v5.10.1 Server at localhost Port 80"
The xampp page("http://localhost/xampp") is a orange website, on the welcome page it says
"Welcome to XAMPP for Windows! Congratulations:You have successfully installed XAMPP on this system!
Now you can start using Apache and Co. You should first try »Status« on the left navigation to make sure everything works fine. For OpenSSL support please use the test certificate with https://127.0.0.1 or https://localhost .Good luck, Kay Vogelgesang + Kai 'Oswald' Seidler" On the left hand side you could click on one of these options:

Welcome
Status
Security
Documentation
Components
PHP
phpinfo()
CD Collection
Biorhythm
Instant Art
Phone Book
Perl
perlinfo()
Guest Book
J2EE
Status
Tomcat examples
Tools
phpMyAdmin
Webalizer
Mercury Mail
FileZilla FTP

Hope that helped you

Can you try directing your browser to http://localhost/xibo/index.phpinstead?

No, it doesnt work, we get an error message:

Objekt nicht gefunden!
Der angeforderte URL konnte auf dem Server nicht gefunden werden. Der Link auf der verweisenden Seite scheint falsch oder nicht mehr aktuell zu sein. Bitte informieren Sie den Autor dieser Seite über den Fehler.

Sofern Sie dies für eine Fehlfunktion des Servers halten, informieren Sie bitte den Webmaster hierüber.

Error 404
localhost
07.08.2011 19:20:40
Apache/2.2.17 (Win32) mod_ssl/2.2.17 OpenSSL/0.9.8o PHP/5.3.4 mod_perl/2.0.4 Perl/v5.10.1

You haven't extracted the Xibo server files in the correct place then.

We tried to re-install the hwole thing now, and now we dont even get so far, we are at the beginning, after the download of the "xampp.zip" we are supossed to press the "admin" button by the "xamp control panel application." and be directed to a webpage, but nothing happens when we press on it. what can we do?

I'm not an expert on XAMPP. I suggest you go over to one of their forums to get their software installed correctly.

Once you have XAMPP working properly, come back here if you're still having problems with Xibo. XAMPP is NOT part of Xibo and we can't offer support for it - sorry.