I just installed FARR yesterday after looking at it longingly for a couple of years (during which time I was using Launchy).
Brand new machine, time to try some improved technology. But I did spend a good 4-5 hours getting my head wrapped around the plugin system (and all the issues and outdated ones).
That "Advanced Plugin Options" thing is misleading since you'd think credentials would be a basic element. Anyway, that button will help out a bunch.
Now if someone would "put me right" as you so eloquently stated, I'd love to get this working on my end as well