Intel Rapid Storage Technology driver - but which one?

So after figuring out that I want to configure my SSD as a cache for my 500GB drive which contains my OS/Program's, I'm struggling to get it working.

Following this link;
http://www.overclock.net/t/1227655/how-to-set-up-intel-...

Ive configured RAID in BiOS, installed fresh OS, I get to the stage where I have to download the latest 'Intel Rapid Storage Technology driver' however, there are loads of them...which one do I use?

If you follow this link, you'll see that there are 18 similar but slightly different drivers.

http://downloadcenter.intel.com/SearchResult.aspx?lang=...

I'm running windows 7, dell mobo (H77 chipset), i7 3770k... Could somebody point me in the right direction?!