With rpmfusion you'll get the nvidia driver installed and updated automatically with yum or gpk.
You'll have to reboot to use the new kernel.
You won't be able to get updates for Fedora 10 from the official fedora repositories since it's no longer officially supported, although rpmfusion tries to keep the extra stuff updated. It's harder to find up to date software for the older versions though.
You'll want to backup your stuff and think about upgrading to Fedora 11 or 12.
The current version is 12, 13 is coming out in the next few months spring or summer 2010. Fedora supports the current version and the previous version with security updates, patches and updated software. Right now 11 and 12 are supported when 13 comes out 12 and 13 will be supported, so you're encouraged to upgrade.
4. When you get the command prompt again (any problems try pressing <ctrl>-<alt>-F1 (or F3) and logging on again).
5. Install the driver ("sh NVIDIA...run").
6. Reboot (type "reboot").
This method works thanks to you, i was trying to install drivers in live cd and it was throwing some kernel error so i installed full os and followed your steps. The new graphics driver v190 installed and thanks again