Whilst ACRE would be great for ArmA, I don't think it will work in DayZ, simply because of the logistical issue of getting everyone on the same TS server, same channel, with ACRE setup. I think you would need a completely separate server with ACRE.
@Chopper Dave: Try moving both acre_xx.dll's into the ts3 plugins directory and then it is very important that you RUN TEAMSPEAK AS ADMIN! It will not work otherwise.
That link is also a VERY old version of ACRE and is no longer compatible with Teamspeak. Here is the most recent one: http://www.armaholic.com/page.php?id=11339