I was stealing the statue of Dibella for Degaine and when entering the inner sanctum of the temple of Dibella in markarth I was confronted and attacked by the 3 women in there including mother hamal. I ended up killing all of them does this mean I can't do the "Heart of Dibella" quest?

Thanks

Ooh, how nice that you've played TESO already! Care to share some spoilers?

---

On a serious note, there are separate forums for Skyrim.

http://www.gamesas.com/forum/179-skyrim-hardware-and-software-issues-subforums/
^Would work in this case, I believe, although, as I have never posted having difficulties with Skyrim, I would not know the exact forum for sure.
However, I am positive you are right now on the wrong forum; This is for talking about The Elder Scrolls Online, not Skyrim.