Calendar -- Replacement Pattern to change to different date format?

I am just having nothing but problems trying to figure out the system of how things work within Drupal and the documentation is really not as in depth as I need it.

What I am trying to do is get the field_date data from the Calendar module to do the following:

07/21/2009 - 00:30 ---------- REPLACEMENT PATTERN OF SOME SORT ------------- July 21

All I need it to do is take out everything and just make it into the month + day.

Any idea how the heck to do this?

Thanks.