Media Servers and Windows 7

I’ve been using this little box consistently for about a year now.  Now that I had to replace my PC, I’m having so many issues doing what I did before.  I’m now running Windows 7 Bit edition.  Going through the forums, I was able to finally get network shares working on this, but prior to the new PC I would use 2 media servers for my needs.  Playon Media Server and the PS3 Media Server.  For the life of me, I can not get the box to now see these Media servers.  Every other device I have can see the Media Servers and use them successfully (Xbox 360, PS3).

Does anyone have any advice on what I’m missing here for the WD TV Live box?

-Thanks