Well thanks for the reaction. the reason i wanted to test it via localhost is because, of course, other people can access it as wel, via my public IP.
The idea was that people for whom i'm creating websites can see it 'realtime'. That's why. Anyhow, i created a work platform on a new partition and installed everything anew and it works well now, i guess i'll do the messing around in the old partition from now on ;-)