I already solved what I asked below. I imagine the "remount fix" is what I needed, but I downloaded the included file, put it in the Windows directory where the original files were located, then got into cmd mode, then followed the instructions. Problem is nothing happened when I typed "su", then it told me "Mount is not allowed...". Anyway, I reapplied the entire original process, and it worked like a charm, even though I had already upgraded to 3.2.2.
We noobs are people too, you know...
After getting into a bunch of problems with the market today (including the dreaded "Can't establish a reliable connection to the server" bug) I think I must have deleted "something" in the repair process, since I do not have root privileges any more.
Everything is working fine now, except that whenever I try to use any app that requires root privileges (like Screenshot ER) I get a warning saying "Root access is required". I still get the usual "X has been granted superuser privileges...", like it used to do, but nothing really works any more.
"Got Root?" tells me both Superuser and Busybox are still there, but it "Failed to obtain root privileges trough "su""
Please bare with me since I barely know what I´m doing here, so I don´t know if it´s possible to reapply the Dan Rosenberg´s Root process like I did the very first time, or I just need the "Remount fix" mentioned by Elysian893. If my only solution is the latter, I´d appreciate some help with it since that process reads like Mandarin to me, and it doesn´t seem to be explained in this thread either.