That's pretty old, probably not beyond early to mid nineties - quill stem. I know from experience that there's no way to ask Scott, as the company has changed hands so much since then, at that time USA, now Swiss. My Scott roadie is newer, but was still unable to find even a catalogue entry for it.
As for the seatpost, the only sure-fire way is to measure it, ideally with some calipers. Having said that, it may well be stamped on it. I f you take it out, it may well be there somewhere below the minimum insertion guideline.
I'd guess that's a 3x7 gear set-up?