[darelon]

Gabriel,

If you haven't found a way yourself yet, you might try something like this:

property lastRunDate : date "1/1/1"
property persistentCounter : 0

set currentDate to current date

if (currentDate > lastRunDate + 7 * days) then
	log "do this"
else if (short date string of currentDate is short date string of lastRunDate) then
	log "do that"
else
	log "do that other"
end if

set lastRunDate to currentDate
set persistentCounter to persistentCounter + 1

HTH,
Ciao,
Roeland.