Download ZPOC from their site.
It's real easy to use, just start it up, and join a room.
Here are the rooms I share in:
Nomad's Landing
Soloman's Porch (former DalNet room!!)
Christian Music [ZPoc]
Christian MP3 and Christian Classics
[†] HARDCORE [†] J C H C [†]HARDCORE[†] 
Christian Music Videos
The Ultimate Room

To see what people are sharing, just right click on their name
and click "Get File List".
OR just click Search on the tool bar.

If you're interested in what I share click Here.