Hey Lucian,
I am not 100% sure but I think you mean Fakes instead of ghosts..
We have tons of information on both add-ons and settings to help you with the fake files..
Home Page Have a look here for the bit about 'Avoiding Fakes'
If you follow the advice there like modifying your searches, getting your settings correct, sharing files , and getting programs like Peer Guardian to help.. it should fix you right up I think.
Especially the little -c trick we talk about...
Also we have a site with hashes of known good files at
P2P RevolutionAlso have a look then at the thread we have on fakes with a list we update regularly
Happy Hunting