Site links broken

[LaPeq FCI]

I was looking for some documentation and got errors at some links on this page :
http://www.xfce.org/index.php?page=developers&lang=en

The icon-theme how to doesn't exists for example :
http://www.xfce.org/~jasper/ICONTHEMES

The documentation :
http://members.home.nl/xfce4/documentation/

Translation statistics :
http://xfce.org/~kelnos/xfce4/i18n/

The Links page have some errors also...

I know this topic may sound idiot but I'm just trying to help.

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LaPeq - Laboratório de Pesquisa Científica da FCI