I can only think that we must be using different source documentation.
But even that doesn't fully explain it, because our half-year figures agree; where our figures are inconsistent is in relation to full-year figures for JH14 and JH15 (i.e., derived from the full-year results for those years).
I am working off page 3 (fourth line item of the FY2015 P&L) of the 13/05/2015 ASX release entitled "Preliminary Final Report", where full-year admin costs are quoted as $1.605m.
I suspect the figure you are quoting (which is probably the more appropriate one) excludes $82k of employee options expense, which I found in Note 3 in the Annual Report.
Either way, you are right; it is a case of getting bogged down in the minutiae.
ASW Price at posting:
78.0¢ Sentiment: Buy Disclosure: Held