Thanks Elliot.
Regarding the broken visual editor... I'm using inFocus as the basis for the blogs on 4 independent websites. 3 of those have had Wordpress upgraded to 3.0 and then to 3.0.1 subsequently... and all are identically broken (in terms of the visual editor). I've also scoured the Wordpress Forums with no (specific) luck... but I'm guessing by your response you haven't experienced users with the same problem.
Regarding the changelog... seeing that my installations are of the original inFocus (version 1.0?) Are you saying that the task I'm looking at would be to go line by line (of the changelog) updating files for all 4 of my installations? If so, I was hoping for a process more streamlined and automated if it exists... is there a place online that describes ALL the files needed to update the ORIGINAL version of inFocus to the CURRENT version?
Thanks for your help.