Look in our maintenance section, has a great DIY:

http://www.4x4wire.com/toyota/maintenance/tacoma_4runner_30k/maintenancep3.html#plugs

or you can look here too:

http://4runners.org/writeups/sparkplugs/index.html

I would return those Bosch plugs ASAP. Our truck don't play well with those plugs. Go to the $tealer and get some OEM Denso or NGK plugs or you'll be sorry that you didn't.