you could post them on a webhosting site, such as tinypic or photobucket, then put the link here - the picture wont appear but people will be able to see it if they chose to click the link. Do you mean have they claimed responsibility of the puled down fence?
If the boundary id theirs to maintain, there is no obligation on them to even have a fence up, and they could just leave it down if they wanted to. If the boundary is yours, there is nothing stopping them putting up a fence on their side of the dividing line, as long as it dosen't encroach onto your land. Before you start complaining to them, you need to be very sure what is your land and what is theirs