thanks for the answer but that´s not the solution.
I fount that the solution is in the aspnet_applications table.
I changed the applicationid of mine and changed the application id to "/"
I found this when trying to run the app in local IIS.
This is the solution for this.
Now i must find why the fckedito does not work with firefox.
You can see the site running at
www.clubvwnica.com