Thanks for the kudos, AS - much appreciated.
On to your troubles - that's particularly weird. I'd expect the command prompt to either do nothing, or work OK.
The system that does multi-row queries is different than single or short-list queries. Did you run the test-install script, and what did you get? I'm guessing that the Apache poor-man's threading response is bad. This is usually because the box does not know how to "hit itself" for a query - the way my pseudo-multithreading works in that app is for your request to fire off an Apache request to itself, then as results come in, ajax them back out to you. If the machine does not know how to hit itself with a request (or the machine is incapable, but that's another point) then select * from queries will not work.
(Side note - I'm working on some new-and-improved ways of doing this, but haven't put it together yet)
If the machine cannot to an fopen that might be another trouble. The requestor uses the base functions (fopen, fwrite etc) to throw the request and if those functions are shutdown on your machine then this will show up as well.
Best first shot: throw the test-install procedure at it and see what you get. I've got my bet placed