Can someone help me in the loads for the following flights and dates..Very much appreciated

EK385 on 29/4/12 and 30/4/12
EK381 on 30/4/12 and 1/5/12

I'm lookin at possibilities of upgrading 2 pax in J to F using miles. If not then are the cheaper F seats available (P class I believe) and what are the availability of cheaper J seats on this flight

Thanks