count no. users registered on each day

[mfacer]

hey,

ive tried this but failed...
i need a way to get a list of the number of users registered on each date since the forum started.
some thing like:

$startDate = "14 Aug 2003"

then get each day and count the number of registered users for that day, the move to the next day etc.. so the output would be something lile:

14/10/2003 - 4
15/10/2003 - 7
16/10/2003 - 14

etc all the way up to the current day. I couldnt do a group by on the joindate, as they are all unique times using the time() ...

thanks anyone!