Hi all.
I just found out that
CrazyCoder and
pvnhome coded another apps runner (pretty simple and cool!).
Tried that on the latest KT firmware and it worked well.
Now I can launch my CR3 (NOT CrazyCoder's QT version) build again and read FB2 books
More info can be found
here on Russian forum (read the section/chapter "13." there).
Yes, it is based on
ixtab's researchs, so thank you again,
ixtab!