Congrats! I just became a member yesterday too. I got mine off Craigslist and it wasn't free - a good deal, but not free :-).
As far as manuals go, you can download Singer Manuals for any of their machines for free at
http://www.singerco.com/accessories/instruction-manuals At least all the ones I've needed are there anyway, including the Featherweight.
I've not gotten to use mine yet as last night's sewing required a blind hem stitch (lol - I've somehow been nominated as the person who can hem at my church) but I'm looking forward to using "Louise" later this week!