I haven't. From my understanding, to see it from the northeast you have be up just before sunrise and look to the eastern sky near the horizon. I think we have till the end of the month or until the comet dissipates, whichever happens first.
Sun ate it. http://news.cnet.com/8301-17938_105-57614223-1/top-comet-ison-watcher-calls-space-rock-officially-doa/
What happen was that when it went on the other side of the sun, it got caught in Nibiru's magnetic field and went dat a way.
THEY say use the innards of a floppy disc as a filter. I got my best pics using a kodak point and push. My fancier camera gets freaked out when pointed at the sun.