i am interested in that fix as i have dwcs4 and dwcs3 installed on a 64bit win 7 machine and i have problems with extensions installed however not just wa extensions others too.
i tried changing the compatability mode and run as administrator but did not really help until i deleted config file that seemed to speed it up again.
as for your recordset, i would say it would probably be something like :
ORDER BY EventDate DESC
maybe wa support would know better. hope it helps though.