Eager in Riverside...

ideally, if u could reasonably do month 3 at http://www.beginnertriathlete.com/Programs/16wksprint2x.htm, that would get ya finishing.  i see the finishing results are anywhere from 1 hour to 2 hours.  the last week would be a 'taper week' and you could combine a few workouts to simulate the swim to bike and bike to run transitions.

not knowing your prior fitness, GO EASY, take rests - do what u can for training, WALK IF NEEDED...dont try to run the whole time if you arent used to running - its cool to walk.  biking shouldnt be a problem at this distance.  of course, u will have to be able to do the whole swim without resting...but u could easily alternate strokes to your easy strokes.

good luck!

dont try to do all the events at once at race distance before race day..that could hurt u more than helping at this point...if u can do all the distances without discomfort separately, then u should be ok...to simulate the swim/bike and bike/run, do a few of those together too as workouts (but not all 3) - but not at race distance - keep them shorter as around 60-80%.  if u can get up near the times/distance u need comfortably, then with a few shorter bricks, u should be ready for race day.

let us know your current swim/bike/run times and how difficult/easy it is and maybe we could offer better assistance.