Tiger from OS 9

This process will completely erase everything on your Hard Disk Drive. Be sure to Backup your User Folder and all third party apps you can't afford to lose
1. Boot from your OS 9 install CD holding down C key.
2. Go to Drive Setup and reformat your drive as Mac OS Extended (HFS+)
2. Reinstall OS 9
3. Update to 9.2.2: Mac OS 9: Available Updates
4. Upgrade your firmware
5. Boot from the 10.4.x install disk
6. Go to Utilities Menu and open Disk Utility
7. Repair Permissions!
8. Install Mac OS X 10.4.x
9. Restart and Repair Disk Permissions (Applications > Utilities > Disk Utility)!
10. Download and apply the Mac OS X Update 10.4.x (Combo)
11. Restart and Repair Disk Permissions (Applications > Utilities > Disk Utility)!
12. Run Software Update and apply all updates available
13. Repair Disk Permissions (Applications > Utilities > Disk Utility)