thanks. now almost everything is working well.
the only problem is a error when calling the vbuelletin members page: www.domain.de/members/username.html
Content visible to verified customers only.
somewhere the oldpath (of the last url) is stored and there the "//" is the problem. i made a filesearch for the old path in all files in the pp directory, but nothing was found...
i checked all inc-files etc, where this oldpath is stored?