How can I have simultaneous access to a single company file in real time?

SOLVED

Hi I'm a It guy trying to get my employers Sage 50 Accounting Multi-user set up to run off an single company file.......in the past trying to run and save from several users and computers in real time has caused some discrepancy's in the database. For example, one guy enters in one customers data.. and at the same time another accountant updates billing; Depending on who saves first the one of them will be over written, because the file they have open is not being synced (metaphorically, blow by blow).

Is there a way to have a company file and subsequent accompanying data sync in real time over several computers with active users (multi-user mode) on them?