@offtherecord 9800GT is one of the first cards with the CUDA support, compute capability 1.1. Most NVIDIA only miners require compute capability 3.0 at least, preferably 5.0. So, NSGminer is your best bet. It works at least.
my issue is that the latest version seems to run slower than the older version. but this is more likely an issue my end than a problem with the software.
