Connecting to NAS hard drive

I’m trying access my new NAS through aTV Flash Media Player, but I’m unable to connect.

I’ve searched the forums for help, but I’m very new at all of this and they all seem over my head. I’ve even installed XBMC but that’s presenting it’s own set of problems (which we’ll leave aside for now).

Would someone be able to walk me through how to find and connect my NAS drive? I’ve reached the limits of my own tinkering abilities.

 

Some details:

aTV 2: 4.4.2 (3160)

aTV Flash (black) RC1 (downloaded and installed 11/12/11)

Linksys Wireless-G Broadband router

PogoPlug Pro

Seagate FreeAgent 2TB HD

 

Connections:

aTV2 <—> router <—> Pogoplug <—> external HD

 

uhhh?

 

lets have a closer look to this page: http://support.firecore.com/entries/20322512-streaming-from-a-mac-pc-or-nas

normally it is very very easy!