Here is the Tales of Symphonia OVA single encoded by Nipponsei
http://www.megaupload.com/?d=QM6V4PWV
Is that what you are looking for?
It's the single that has ALMATERIA / Negai (Opening and Ending respectively to the ToS The Animation anime.
I have some Tales of Eternia The Animation songs too. I don't have the single but I do have the opening, ending, and the insert song.