You should plant your Jalapeno 6 weeks before your last frost.
You should begin your plants indoors and have them under a grow light for 16 hours a day.
When planting just lie the seeds on top of the soil and cover them with about 1/2 inch of compost. Plant them about 14-16 inches apart when you transplant them outside.
It is recommended to give the jalapenos some support when they grow. Use a trellis stake or other support.
It takes about 10-14 days to germinate and about 3-4 months till you can harvest the pepper.