OK, let's go back to the original issue - (quote) ... Please, to avoid nasty surprises, and a lot of rework, just exactly what will I lose if I do these upgrades? And, what can I do to avoid the inevitable nasty surprises? (end quote)
I'm not sure what's going on here in regards to that bogus Yahoo search screen. Something is really strange ... It seems like my computer burped or something and that bogus Yahoo screen showed up - and buggered up WP to the point where it was useless. Then, I noticed my resources were low, so I did a restart, and then had a lot of trouble getting Firefox back up ... but, long story short ... everything seems to be fine again, including WP, although the backup program (BackWPup) got buggered up, so I'll have to reload that, only this time, I'll set it for daily, rather than weekly.
I'm not a techie - I'm a 64 year old retiree. I do very well inside programs, but outside ... as in code, or HTML, or delving into GoDaddy's servers ... scares me to death.
So we took a little detour and I have to figure that out somehow, so, as I said, let's go back to the original issue - upgrades.
Thanks - DLC