I'm a new user and I need to

I'm a new user and I need to move 3 3.1 MP1.  I  downloaded all 6 files from the FileConnect because I wasn't sure which ones I actually needed.   I assume I would use the

Desktop 10.3.1_PUP,

3.3.1_PUP,

3.3.1MP1,

the Web 3.3.1Full and the Web3.3.1MP1Full

But I don't understand what is required for the desktop and the universal upgrades and I couldn't find the most current upgrade documentation.  Please point me in the right direction for procedures on how to upgrade and the proper versions to use.

Thanks