Server 5.5 on 10.1 -- Startup Issues

Okay, first off -- for those of you looking for the fmserverd binary, it is here:

FileMaker Server 5.5/FileMaker Server Config.app/Contents/Resources/fmserverd

Now to my question -- I'm trying to set up FMP Server 5.5 to run as a non-admin user on Mac OS X 10.1. I can do so just fine from the command line while logged in as the non-admin user, but I need to create startup items in /System/Library/StartupItems and I'm having trouble executing the command I believe should look like this:

sudo -u fmp /Applications/FileMaker Server 5.5/FileMaker Server Config.app/Contents/Resources/fmserverd -c fmserver.conf

But when I run that, I get the error:

Error opening log file: No such file or directory

Requested command has not been executed.

I don't know what log file it is looking for -- the Events.log and Statistics.log files exist, and I tweaked the permissions on them so the non-admin user can read/write to them. Is there another log file that should exist somewhere?

I tried copying those two logs inside the Config.app to sit next to the fmserverd binary, but still get that error.

Anyone?