Wait, what? You're really overthinking this...sometimes flowers drop, for many different reasons that several people have already mentioned. Where are you again?

If I understood you correctly in your last thread, the trusses that are dropping blossoms are ones that were on the plant when you sprayed your super strong soap/water solution. If so, then that's very, very likely the reason the flowers are dropping. Insecticidal soap, even at regular dosages, can cause blossom drop.

I don't think you added too much nitrogen. It's close to impossible to over fertilize a plant with compost or mulch, especially in a container.

i know that is the factor but then again i have added compost to this container BEFORE planting. mixed with the soil.

the compost itself consisted on many nitrogen rich items then i used to fertilize the plant once per week as suggested by the MG box. then i found out i was over fertilizing them.

hmm i guess i will just leave it as is then and stop fertilizing till fruit set

I agree with GT on this. It's really hard to over fertilize a plant in a container with compost, especially a tomato. I've planted tomatoes in containers using straight compost that was cooking so fast it almost burned my hands when I pulled it out of the pile without a problem.