@the Architect: hmm, i'm using firefox and the install button works perfectly for me.
Could it be a security setting or something on your site.
I know from several users that they don't have a problem like that with firefox
@algafelah: blank pages are most of the time, installing problems while doing the template changes.
try to revert you templates and then reinstalling the hack.
also just install the plain version at first.
And yes, it works on 3.0.3, as we have isntalled it on vb.org