(sorry for my language)
When I download xp_publish.php ( cpg_###.reg) by Mozilla Firefox I had a lot of different problems of starting ...
When I take it by IE all functioned very good
Well, then you probably need to read the minimum requirements of the XP Publisher: it is mandatory to use IE anyway - it doesn't work with Firefox. The .reg file can be download using firefox as well. If you need details, post details (as per board rules) after having read the docs.