I don't have the bouncing bug, but I did at first have the no gunner position with V1.75, but quakergamer fixed this and updated the download, now it works.
As for no windows, I can't see them very well, the Alpha channel textures could be more realistic, but I tried shooting the driver, but the bullets didn't go through the window, so I assume they're there.
I think the TOW can't fire a projectile weapon because of the class as a jeep, to make it behave like a jeep. I think cars can only have tracer equiped weapons on them. To have a projectile (fires an actual model) it needs to be in the armoured class for a vehicle.