You're reviving a two year old thread. At that time version 2.11.940 was the most recent and version 2.12.941 was about to be released.
You, however, seem to be referring to version 1.20.815.
I think that one was of February 2005.
Whereas I still (also) have version 1.37.826 (of December 2005) installed, I would nevertheless suggest you to update (undless you have a very good reason not to do so).
If I remember correctly for version 1.37 (and earlier versions) all preferences were saved in BSPlayer's installation folder, so I think if you simply copy complete folder with all contents, it should also include all your preferences.