It looks like the installed ACEGI servlet filters are blocking the requests for the Javascript files and redirect them to the context root path (/ICEfacesAcegiExample).
The components contained in the login page are not working because they rely on the Bridge being available and running.
One solution to the problem would be to not filter the requests made for /block/* and /xmlhttp/* paths (or maybe filter just on *.iface since the servlet pattern matching is not very powerful).
A second solution would be to not use Icefaces components in the login page. Once logged in the requests for the Javascript files won't be redirected anymore.
example application tested on tomcat 6.0