I don't think you guys are understanding what I'm asking, so sorry if Im not being clear. Homegroup/network sharing is not the issue. I have that customized fine so that other PCs can see exactly what I want. The problem lies with media streaming, to devices, specifically in this case my playstation 3. Homegroup is irrelevant for this as it only can be used by other desktops running Windows 7.. which obviously any device that isnt a PC doesnt.
For these devices, you have to use a Media Server like WMP or other downloaded software. In Vista, when set up properly, you could share all your shared folders with these devices. This is how I liked it, as it allowed all devices to have the same access to my shared folders as other PCs on the network. In 7, the media server in WMP12 automatically shares all your libraries, even if thats not what you're sharing to your network. I can't figure out how to change this (if you even can). The only workaround I can find is to only put my shared folders in the various libraries, which is a complete waste of the feature.