i started walking/jogging 1 mile everyday.. and everyday i would push myself further.. [i was on a treadmill] i would say "okay.. im going to run for .20 miles then walk [fast]" i kept building up and up until one day i ran a whole mile w/o effort.. before i knew it.. i was running 3-4 miles a day.. the key is to GRADUALLY work your way into it or you will never want to do it again. now if you are outside say "im going to run to this landmark" then walk a bit then jog then walk.. its hard at first but it gets addicting

if you absolutely hate running try joining a gym to use their cardio equip. or take classes