the absolute easiest thing would be *this requires that you still have your old RO folder saved* install the newest mini installer and then copy over the old BGM and sdata.grf
As for what you have you need to have all three files downloaded and make sure to extract them to the same place then you should just be able to patch and good to go *Ill try it out with the full installer just to make sure*
LOL have to wait 2 hours to get the last file. Ill let you know then.