Your bishop should have given you information on how to gain access to the Missionary Online Recommendation System (MORS). If you have not already interviewed with your bishop then take a look at
Preparing to Serve.
If you have started your application and the bishop did not give you the written instructions that include accessing MORS, or you lost those instructions, then talk to your ward clerk. He can provide you with those instructions. The MORS site URL is
http://missionary.lds.org. you willl only have access if your bishop has started the application for you in MORS.