Yes, alot of the candidates interviewed for the second officer scheme were low hour pilots.
The requirements in the advert last year, were ICAO recognised CPL/IR with frozen ATPL from a recognised school, under 29, preference given to candidates with tertiary education in science or engineering.
However it is not a "continuous" scheme. The last time the scheme was advertised was in Flight International january 2005 (interviews held in April and November). I don't know if Qatar will be running the another second officer scheme, one assumes if they do, they will advertise in flight international again.