htaccess modrewrite SEO

Hello everybody,

I try to rewrite links to an old site to the start page of the new Contao-Page in order to safe google rankings.

The old page-links are all in following syntax:

/index.php?gui=guiFoo

I can't get a running modrewrite-Rule. I tried several combinations, for example:

RewriteCond %{QUERY_STRING} ^gui=(.*)$
RewriteRule index\.php http://www.foo.org/de/index.html [R=301,L]

directly after the "RewriteBase /"-statement. That rule doesn't have any effect.

Any ideas?
Thanks in advance
Jürgen

Have you altered some strings, or you missed up something that result to this...

I altered something and it seems to work, but I don't understand why?!? I didn't post my solution, because I can't believe that this is really the right way:

RedirectMatch 301 ^/cnt.php.*$ /de/cnt.php

RewriteCond %{QUERY_STRING} ^p=agb(.*)$
RewriteRule (.*) de/agb.html? [R=301,L]
.. more of them

RedirectMatch 301 ^/de/cnt.php.*$ /de/index.html

First mistake was, that i searched for "index.php" in the rule instead of "cnt.php" - now: (.*). Why I need the first and the last line, is a miracle for me, but it works in my case...