A source emailed me with a map showing where the IDF was working, where the Lebanese RPGs were fired from and where the IDF officer was hit by a sniper. I am not quite sure how to square this away with the videos and photos we have seen, but I would tend to trust this person. (For example, the place shown below would be consistent with the curve in the road from the initial AP photo.)
The blue line is The Blue Line. The black line is Israel's fence. The yellow dots are significant - they may be sniper positions or other LAF positions - but I am awaiting clarification.
If you want to play with Google Maps, the link to this map is here.
(And on a side note - yes, it is really cool to get inside information!)