I have purchased the Snow Leopard from the UK store for my iMac (Version 10.5.8, 2.8 GHz Intel Core 2 Duo and 2GB 800 Mhz DDR2 SDRAM memory). I received the redemption code 6 months ago and was so confused as it where to put this code. I wasn't around for the last 6 months and now want to try again. It says I need to enter this code in the app store but can't download this app store until I update my software! When I click the apple icon and go on software update, it says my software is up to date! This is such a catch 22, I really don't know what to do!
You will need to buy the Snow Leopard installation DVD from the UK Apple Store
I'm not sure why you just got a redemption code. If you look at this information page about older versions of OSX it says when you buy Snow Leopard you get a DVD, but if you buy Lion or Mountain Lion you get a redemption code. Are you sure you got Snow Leopard?