1) dont cry man
few of us have this problems for more then half a year

2) ok look for my post "Sputtering and jerky idle (relisted)"

also u can find the origional post..
it definitly gonna help u. at least u can find out what is wrong and eliminate some possible sources.

the best u can do now is what i did: run the car, wait till it starts to idle rough. then unplug and injector, listen the engine, if it still jerks, plug the injector and unplug next one. Keep going until u get stable 5 cyllinder working engine. If u dont get it, then its not injectors, neither sparks nor coils

well read my post and get ideas.