As was mentioned above, airbags are not something to be messing with if you don't know what you are doing. Not all that difficult but it has to be done properly. Repair procedures are in the FSM (along with names/numbers of parts) - if you don't understand them, take it to someone that does. IIRC, you can reset the system yourself - procedure, if it exists, should be in FSM.
If the site's search isn't finding what you need, go to any of the major web search engines and add "site:the370z.com" to your search string. Eg,
airbag replacement site:the370z.com