Mac not allowing me to update to OS X 10.6.8?

I'm currently running my Mac on OS X 10.5.8 (snow leopard).

This all started when I tried to update my iPhone to ios 6.

In order to do that, I need to update my iTunes to iTunes 10.7.

Downloaded that, Mac told me I need Mac OS X version 10.6.8 or later.

Downloaded that, Mac told me the update requires Mac OS X version 10.6.

I can't find version 10.6 for download on the internet. System updates is not showing any updates available.

Please help me figure out how to resolve this problem.

Don't you have to pay for mc os x 10.6(lion)?

You can't download 10.6. That's Snow Leopard, you can still buy it, check out Amazon.com.

What have you been doing since 28 August 2009? That's when OS 10.6 went on sale. After three years, it is now discontinued. You might find one still in stock at Apple. Call 1-800-myapple, and ask very politely if you can buy a "Snow Leopard DVD". That will be your cheapest price by far.