Thanks kindly to both Ted and Bert for your counsel.
Without the repeated time outs I'd have little concern about the size of the database as I have gobs of storage in my AC dedicated Raid server, but each time-out requires a restart of the application. As far as tech support, the staff [are] really good but cannot do anything about issues that need to be fixed by programming. I've three distinct sessions with tech support on this time-out issue over the course of 5.0.29 and thus far have no resolution.
I'm happy to hear Ted has successfully upgraded even with the size of his database, I sort of feel we're all in this together; it's the slowness of the RX module he's experienced following the upgrade and which consistently appears in this user forum that keeps me from adopting the newest version, we generate several hundred if not a thousand prescriptions per week thru the AC Rx interface.
Oh, and BTW, re: the "H" word, what I meant was to copy (not cut) the audit log and import it into my laptop and then retrieve the raw data using some other database program, hopefully mitigating the time-out problem. I'll watch my language in the future.