AFAIK there has never been a Mac version of Ares, it is a Windows only program.

I do not know the full story about Ares, and what versions support the Gnutella network. As far as the ares galaxy network goes, there's supposed to be an application called iGotcha! which was designed for it, but I do not know if that app is still developed.

On the Gnutella network, LimeWire 5/LimeWire Pirate Edition will show audio bitrates and video resolutions if you set your search result columns up to show this in classic view mode. ie: control-click/right-click the heading-column and choose to show which columns you want such as resolution, length, bitrate, extension, etc. LimeWire 4 also had similar abilities, but the video height and width dimensions were shown in separate columns.

LimeWire has torrent support. But like many part-time torrent programs is not anywhere near as good as the specifically designed torrent programs. Such support is rather basic IMHO.