archive calender to be default on server for all to view

all my mails gets delivered to my archive PST and my calander has been running from there just fine! BUT had to format PC and reload NOW my mails are still being delivered to archive PST including meeting requests BUT when anyone views my calander status via mailserver when they want to invite me to a meeting then they see only the server calander and NOT my archive calander so cannot see my calander status – busy or not…

PLEASE can SOMEONE help.. my IT has been sitting on this for weeks now!

thanks
yolanda