Separating Vocals For Remixing Options

[Mr. Jason E. Lec...]

i have a song i am trying to clean up and remix for a friend of mine. his brother passed away and they have one recording of a song he wrote. it seems that it was simply a bedroom recording, but if it was multi-track, nobody knows, thus i don't have access to the separate tracks of vocals and instruments. i really want to help my friend and his family. so is there any way to somehow "bring out" the vocal tricks, or cut down the other tracks so i can achieve this?

[Mr. Jason E. Lec...]

okay, i'm not certain about the terminology or the typse of tools you're talking about in the phase switch scenario. i have a lot of plugins from audio damage and ohm force. would any of them do this? and in response to the note about using eq and compression, could you maybe be more specific about what settings/levels i would need to tweak. i'm more of a synth and drum programmer, not really an audio editor, so any way that can be explained to a novice in this situation would be helpful. like i said i have those plugins as well as a decent amout of others. i use ableton live 6.x and have everything that came in the box with it. any tips would be greatly appreciated.