But somewhere on the web I found the tips that I can use the plugins from Fontexplorer 2, to have Fontexplorer 1.2.3 to work with CS4... Worked like a charm. But now we upgraded to CS5!
Well, I just downloaded Fontexplorer 2.5.2 trial, run it (without install), added the plugins for CS5, and then quit the trial and ajected the image...
What I now have is CS5 with the plugins from Fontexplorer 2.5.2, working perfectly together with Fontexplorer 1.2.3