Entry time varies, Alexa have just recently upped their bots activity (check your stats). When I visit Alexa it is showing 2 entries and saying 10 (so 8 must be supplemental but don't worry). They will index more as time passes but remember Alexa ranking is slightly skewed as it uses toolbar data and not everyone has this installed.
When looking at your sites I noticed that it is DMOZ listed, this is excellent and should see some great traffic/PR increases for you
HTH