[Plugin: WP-SimpleViewer] "Gallery XML not found" – but XML file is generated

Hi,

When I am trying to add a gallery from a flickr account it makes this:

http://img442.imageshack.us/i/fullscreencapture214201.png/

and generates an XML page like this:
<?xml version=”1.0″ ?>
<simpleviewergallery maxImageWidth=”800″ maxImageHeight=”600″ textColor=”0xffffff” frameColor=”0xffffff” frameWidth=”0″ thumbColumns=”5″ thumbRows=”1″ thumbPosition=”BOTTOM” title=”” showOpenButton=”true” showFullscreenButton=”true” languageCode=”AUTO” languageList=”” galleryStyle=”COMPACT” useFlickr=”true” flickrUserName=”deniz atak” flickrTags=”door” />

I am using SW Version 2.0.5 and php version is 5.2.* My uploads folder has 777 permission. The flickr account’s permissions are also public.

the page that I am talking about is:
http://denizatak.com/?page_id=12
also DOM/XML is enabled on the server.

I will appreciate your help.