If you Mac meets the requirements:
Minimum System Requirements for OS X 10.4 Tiger:
A PowerPC G3, G4, or G5 processor
At least 256 MB of RAM
DVD drive (DVD-ROM), Combo (CD-RW/DVD-ROM) or SuperDrive (DVD-R) for installation
At least 3 GB of free disk space; 4 GB if you install the XCode 2 Developer Tools
More information here:
and you can actually find a retail Tiger install disk on eBay or Amazon.
Might call Apple, someone recently got a cheap International version from them!?
Apple may even have an International version...