It sounds like you really should use the services of an Adagio consultant. See if there is one close to you here .

Adagio program files must be on the same logical drive as seen from all workstations, including the peer-to-peer server.

Create a folder on the server called something convenient (Adagio, Acctg, money )and map it to a drive letter that you can use on all systems. Install Adagio there, using custom install and checking the "workstation files" option.

Do the workstation install on the other systems.