o.k
I am back home now
Settings are the same on each version:
Scan archives
Sensitivity - Thorough

“According to the virus names, however, it’s a false alarm on some Panda files anyway, no real viruses.”

YOu guessed right, that bin file is Panda Internet Security 2005 - how did you know?
The thing is - I don’t think it is possible to verify each virus alert with forum gurus. So, how would I know which one is false positive, and which one really the virus.
Also, the original question still stands:

Why the newer version did not recognase virus in bin file, and even old version got only one virus in bin package not both (here I am not sure how it happened myself).

Anyway, even if it false alarm - the new version did not get it - next time it could be for real and then what?

That is why I got already Avast, AVG, BitDefender and norton installed in one PC (new one). Also, planning to add Panda, Kaspersky, F-Prot, PC-cillin, and maybe TrojanHunter - I am paranoic - too many d/l from p2p - better be safe than sorry.
Awaiting patiently for any response.

P.S. The bin file in question is approximately 85 Mb, so I can not sent it by email for testing - I open for suggestions!!!

Edit
Is there a list of possible false alarm names, or something like that?

Edit 2

File names are: Viruses
Platinum8/Pav.sig Win95:Matyas
Platinum8/PavDll.dll Win32:Kuang2
Platinum8/Safedisk.img Win32:Kuang2
Safedisk/Pav.sig Win95:Matyas

I think that is all info Igor, U asked.