one scenario:
Going into frequent spooldown can indicate a problem with network configuration and infrastructure, not recovering from spooldown sometimes indicates a problem with permissions / rights.
1) Permissions - do all the terms have full read/write access to the file server and vice versa? specifically does the user account the CTRSVR and EDCSVR services are registered under have read/write access to the shares on the FOH computers? if EDC's service is registered as local system you should register it as a user with ... read write the the FOH.
2) Networking - lots of switches = bad especially for older versions of Aloha. Doubly true if as often is the case lots of switches means you also have lots of bad wiring. Try to at least get them onto one switch and make sure it's a new switch, they're cheap, don't just reuse an old one. Check wiring that it's not going over florescent light fixtures and the like... Make sure all NICs on FOH and BOH have power saving turned off... make sure only Aloha stuff is on the network, things of that nature.
just some ideas.