Triathlons

Im a personal trainer and first of you seem to have the will to do it, thats important and you have your first step right, endurance. basically want you want to do is have a periodization program, now you say its in 2010, so assuming that the event is in January(you didn't state) you have 5 months. (not that long when you see how to break it down)

Ok so you have 5 months this is a basic periodization program(assuming its in 5 months)

**Training 3 times a week

Month 1 + 2 (cardio vascular base)
- Day 1 Long short Run (80%)
- Rest Recov day (not counted in training)
- Day 2 Endurance Weights (to fail)
- Rest Recov day
- Day 3 Long Short Run (80%)

Month 3 Intervals (lots of types of interval training basically fartlek)
- Day 1 Interval training (90%)
- Day 2 Endurance Weights
- Rest Recov day
- Day 3 Long Short Run
- Rest Recov day

Month 4 Sports Specific (this is where the swimming and bike riding come in)
-Day 1 bike/swim
-Day 2 bike/swim
ect

Month 5 Taper
the last month you do not want to do heavy exercise or else when you do your event you will feel like pomegranate. at most maybe 2 runs 1 each week then 2 weeks rest recov. (sounds strange i know but best practice is to start the event when your adaption phase it setting in.

that all may seem like lots of no sense making gibberish but i would strongly suggest you get a coach to help you with your training. heres a picture that helped me when i was trying to learn all this a few years back (sorry drawings not my strong point..also 12am here)

 Spoiler

soooo yeah...any questions....feel free to ask