chi-ex orders

can anyone answer this for me, it's quite relevant to both 88e and myself, i just checked the market depth BUYS AND SELLS for 88e, and to my surprise, ALL orders on the Chi-ex have been purged, there are NONE there as at 7.15pm tonite, i never realised that they get purged at days end, but i know for a fact they are at the back of the queue during the days trading, but i also know that they have priority over the ASX trades, as i have personally witnessed Chi-ex orders sitting behind me, when i am front of the queue, get executed FIRST. What i want to know is, assuming they return tomorrow (which they ALWAYS do, in great numbers) do they still have priority over my ASX exchange status, being a new day ? I sure would hope not, but would sure like to know for certain, comsec are clueless and not helpful at all (my online broker) On the comsec platform, for e.g. i put on a small order $500 worth of 88e to buy at 1.4c just before 4pm, and the second i put it on, i was in front of ALL the Chi-ex orders on my comsec screen, thats how i know, yet comsec dont !! Even on the rare occasions i get someone without a foreign accent and can understand them, they are still clueless..