You need to get a formal offer for a
skilled job for which you have recognized qualifications. There are some notes on this page
http://www.immigration.govt.nz/migra...tialskills.htm which explain the situation regarding the skills lists.
If you meet the requirements under one of the headings (and also the health and character requirements necessary for all visas), a job offer will open the door to getting a visa. It doesn't equate to sponsorship in INZ terms - that has a specific meaning.
http://www.immigration.govt.nz/migra...ponsorship.htm