Somehow I over-looked the lifehacker bit - need to make them a permanent reference addition, I guess.
Sorry to be so long getting back, but it took most of a day - and a beer or three - to recover connectivity ... hell of a time for backup machine to die, but to paraphrase Murphy - or Occam's Razor? - when you need it most, it will work least.
Tha's pretty much why I wanted the partition manager, so I'd still have connectivity whilst modification of the new install was in play.
Oh, well ... just as an update, after upgrading, Easeus installed quite nicely. However the upgrade pretty well made a hash of many of the config settings I'd imposed, and some of those settings seem to have moved <chortle />. Thought wireless/internet was a goner, but got lucky, i.e., stumbled over the right config area while casting about desperately <chuckle />.
'Preciate the help and the reference/reminder.