Pb to read a XML page

Hello,

I use MOZILLA 1.6 French Version. When I go to a site (https://...) I 
get this message (in french) :

"Ce fichier XML ne semble pas avoir d'information de style associé avec 
lui. L'arbre du document est montré ci-dessous."

The english translation should be something like that :

"This file XML seems to contain no associated style information. The 
document tree is shown here below."

What can I do to correctly read the page?


For information, my configuration is :
	OS : linuw kernel 2.4.22
	Distribution : Slackware 9.1