"in general", the basic 32 rig has 4 masthead halyards - main halyard on the aft side of the mast, and three (port/spinnaker, centerline/jib and starboard/spinnaker) on the forward side of the masthead.
The jib halyard and port spinnaker halyard usually come out of exits on the port side of the mast; the main halyard and starboard spinnaker halyard usually come out of exits on the starboard side of the mast. In both cases, the spinnaker halyard will come out of the uppermost exit slot.
On my 32-III, the arrangement looks like this... the exits are staggered, with the lowest (main halyard) about 30" above the gooseneck on the starboard side, then next up (jib halyard) 12" above that on the port side, starboard spinnaker halyard 12" above that on starboard side, and port spinnaker halyard 12" above that on the port side.
If your 32-200 was rigged for a spinnaker pole, there will be a 5th line (the "pole lift") somewhere in the mix. You can tell which one that is because it does *not* go all the way to the masthead - it comes out of the front part of the mast about 2/3rds of the way up. I don't know where it will exit the mast at the bottom - KennethK may be able to help with that.
As for the rest, yes, I'm a big fan of 5/16" low-stretch lines for the halyards. I use 5/16" "VPC" from New England Ropes, a little spendy but I love it, and it can be found on sale several times a year (and/or West Marine's price match is cool). I use all-rope for all 4 halyards.
$.02
Bruce