Ok, first they got problems on their release download from their website (But, it's fixed now). Then, I tried the Live CD installer to upgrade from 11.01 to 12.04, and got an mounting disk error and never booted. So, I reinstalled Ubuntu and it was done (whew).
The moral lesson of the story (again), is back-up, back-up, back-up always (and away we go!). hehe.