Call the Mitel order desk during normal business hours, give them the sys id number attached to the mcc if it has one, if not any other one will do. They will email you the associated moss sheet.
If the moss sheet has remote software download enabled system option 109 I would recommend you go to Mitel On-Line and upgrade the flash card to the latest release if you have access. LW19 3.0 was not the best software ever.

unemployedmitelguy