I have no idea what this "Wubi" thing is.
I went to that link, and wow...it seems like it's something for me. But there are terms that are new to me, and then there's the commands...
From a terminal, run sudo apt-get install dmraid
Wow! I haven't got a clue. It actually does seem doable at first glance, but I think I need to FULLY grasp everything before I risk losing all of my data.
I guess I just want to know that anything it says in that article doesn't look like it will knock down existing partitions and wipe me out.
By the way, I REALLY do appreciate this help from all.