The 2 satellite computers must each have the same drives mapped as does the server. Furthermore they must point to the same locations on the central computer as do the drive mappings there.

Drive E: is not a good choice because it is usually (always?) reserved for the local computer.

Why not use drive G: for both the applications and data? Of if you want to separate them, use something like drives G: and H:.

Remember that you also have to contend with security/permissions in a setup like this.