The latest and greatest MTS2000 software is CPS R01.10.00, part number RVN4176N, price is $265.00. You can also get the MCS2000/MTS2000 combo super value meal package, part number RVN4177N, price is $397.50. Both of these will require license agreement part number RPX4719G, which is free. You request the license kit, then fill it out, then send it to Motorola, then they let you buy software that falls under that license.
Hope that helps.
Jeff