I have done several quests around the strip, but i am afraid i did them in such a manner that i am locked in a situation that i do not want.

I accepted and finished all of the Omerta's quests except tellin Big Sal that i'm done. I also told on Cachino and and freed the hoker and after that i accepted the quest for the NCR to see what the Omerta's are up to.
Now i only seem to be able to tell Big Sal that i have finished the quests (this results in a negative reputation on the strip).
But am i alowed to finish the quest for the republic in a positive manner? And finish the game while backing the Followers of the Apocalypse/NCR/BoS or am i doomed to finish the game supporting Ceasar?

Troike doesn't want to speak to me after i delivered him the weapons cache (even when i examin the prosttute). And colonel Moore doesn't give me the option to lie to her about the Omerta's plan.

So wich way shouldd i go now?

For those who run into the same problem.

When confronted with a problem, just kill someone. In this case big Sal. I just plain shot him, gained karma, ran to colonel Moore, lied that the Omertas where up to no good and all was well.