I am looking to get listed in dmoz. I tried 2-3 times, but failed. One who can do it for me I would pay him $75. I think for this you need to know one of their editors. If you can do PM me and I'll send details.
sometimes you can just get lucky, my friend got listed and myself - you don't have to know the editor.
It also took me almost a year to be listed but I only submitted once. I don't know why it took that much time to be listed.