You should download 10.1 for 64bit.
http://en.opensuse.org/Download
There shouldn't be any problem with the 7300GT card since most of Nvidia works perfectly in Linux. What happens when Linux load, do you get a graphical login or does it prompt you in the shell?
You can still install your video driver, I suggest you follow this guide and have a look. Everything can be done in the shell, you can still run YaST, just log in as root and type yast2, but navigation is a little tricky.
Here's the link
http://www.thejemreport.com/mambo/content/view/254