Plugin broken after update.

Hi,

I’ve been using wordpress for a while and this morning I decided to update to the latest release [2.0.5].

I followed the “How to Upgrade in Five Steps” to upgrade. I guess it was too simple to get it works the first time ?

When I tried to reactivate my two extra plugins, I have something like this:

[blockquote]Found
The document has moved here.

Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request. [/blockquote]

Can anyone help me to solve this ?
The plugin I have added are :Google-analyticator and Google-Sitemap.

Thanks in advance.