Sergey, I don't know what am I going to do without you:)
There is no question i asked and you didn't answered.. NONE NO NE

I am updating the function I found with this one.

FUNCTION WYTOD(nYear,nWeek,ndayofweek)
*dayofweek is 1 for monday and 7 from sunday
RETURN DATE(m.nYear,1,1)-DOW(DATE(m.nYear,1,1),2) + m.nWeek*7+m.ndayofweek-1

I just wrote HISTORY.

thank you Sergey! thanks a LOT