The only bit of luck we might have is ISON is currently North of the ecliptic plane. Soon, it will pass south of the plane. As it comes absolutely the closest to Earths orbit (Earth won't be there - yet) it will be northbound and out into almost interstellar space. That's all premised on it surviving at all!
Therefore, it might be that any objects due to hit us might be traveling in a north (somewhat - very obliquely) direction and impact in the southern hemisphere.
Well, we can hope...
I'm just hoping for a good viewing. The most excellent comet viewing ever for me was Comet Bennet in 1970.
My most recent comet viewing was about twenty years ago. May have been named HaleBop or something similar; truth is cannot remember. Think there was a cult that killed themselves that made the news with that one (HaleBop). This one (the comet) was about a million to two million miles out but was about one sixth the size of the moon when being viewed for several nights running. This comet was traveling from east to west. Spectacular and similar in size to the one which recently was viewed from Australia. Is the comet which was viewed from Australia ISON? Is your photo posted a view of ISON?