change of NOC code

hi BC GUY and leon, presently i'm working here in alberta,canada under the low-skilled pilot project. i work as a warehouseman(noc code 7452). my employer wants to sponsor me to AINP but the code is not eligible. i'm a machine operator for 7 yrs back in the philippines. my employer and I wants to change it to metal working machine operator(noc code 9514/semi-skilled) but have no ideas on how to start . my employer is willing to train me as a machine operator.i still have 10 months before my 2-year contract expires. by the way, my company is a network of steel service centres providing a comprehensive range of products and services.
what steps should we take to change noc code 7452 to code 9514?