Re: gforce fx 5200 glxgear 650 fps @1280x1024 depth 24
Really ignore scores in glxgears. Glxgears mainly gives an indication if 3d is accelerated or not. The results of glxgears depend a lot on resolution, color depth, cpu and also a bit on the gpu. The test is so basic, it only shows some triangles which make it not usable as a benchmark. Really don't compare results with others. The score you are getting is fast enough to be accelerated and further your glxinfo output shows good stuff too (direct rendering: yes and so on).
Further the way libGL is set up is correct too. The real nvidia library is libGL.so.1.0.6111 and libGL.so and libGL.so.1 in the end point to it, not wrong with that. It happens for other libraries too.