[Robert]

It's been a while and I've only done it that one time, but I pretty much just followed what was outlined in that link. It's a bit vague, but I'll try to guide you through, to the best of my memory.

On your PC, download the zip file that is at the end of those instructions.
On your tablet, download and install from the play store Root Browser and Root Checker (more info on that link).
Then just follow the instructions he gives you. All of the code is run in your PC's command prompt (cmd.exe). Hopefully that's enough to get you going.

Thank you. I will try my best to follow the procedures, If there's a problem i will inform you.

Many Thanks,
Robert