How to update my iTunes on an OS 10.5?

I'm currently running Mac OS X Version 10.5.8. The iOS 6 update on my iPhone required me to download a newer version of iTunes, which will not install on my computer due to the fact that it is an earlier and incompatible version. How can I fix this so that I can sync to my phone?

Uninstall itunes. Then download it (from the Apple site) No, your songs will not be deleted.

Update Mac OS X to the latest version your computer can run through Software Update.

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