Problem with installation

Hallo,

i tried to install vbseo but i became this error page:

Serverfehler!

Die Anfrage kann nicht beantwortet werden, da im Server ein interner Fehler aufgetreten ist.
Fehlermeldung:
Premature end of script headers: index.php
Sofern Sie dies für eine Fehlfunktion des Servers halten, informieren Sie bitte den Webmaster hierüber.
Error 500

Zweeper.de - THE social network
Fri May 4 16:27:01 2007
Apache/2.0.54 (Debian GNU/Linux) DAV/2 SVN/1.1.4 FrontPage/5.0.2.2635 mod_python/3.1.3 Python/2.3.5 PHP/5.1.2-0bpo1

The test-script sads, that vbseo ioncube loader version works on my server, so i downloaded it and followed the install instroductions.
(Test File)

can someone help me?
(excuse me, my englisch is very well... )

Hello,

try to add "RewriteBase /forum/" line in your .htaccess.

i tried, but dont works :(

You have an outdated version of Ioncube installed:

This program makes use of the Zend Scripting Language Engine:
Zend Engine v1.3.0, Copyright (c) 1998-2004 Zend Technologies with the ionCube PHP Accelerator v1.3.3r2, Copyright (c) 2001-2002, by Nick Lindridge

You should update it to the latest version to resolve the issue.

ah thx, i will tell my host to update it and will try it again!