• script - used mostly by Java(tm) 'programmers' in a lame attempt to hide the fact that their language is an obtuse, bloated monstrosity that leaks memory like a sieve. I put quotes around programmer because things written in Java are not 'programs', but 'bcs' (byte-code spam)
• program - what almost everyone else uses

Seriously, I usually use 'script' if it is less than about 20-30 lines, and program otherwise...

fnord