Scott
Keep away from superglue for photoetch railings, ladders, etc. Especially if you are new to this facet of enhanced modeling.
As others have posted, SHORT lengths of railings are easier to work with. You just need to PLAN ahead with the measuring of each railing, (where will it start and where does it end.)
White carpenters glue(Elmers), Gators Grip Hobby glue, Sobo Craft and Fabric glue are some of the adhesives to use. What they all have in common is that they are "water based". If you drip some of this on the hull or deck a wet cotton swab can clean it up without damaging your paint job.
Another trick is to use masking tape or Duco "Stick-Tac" to hold the railings in place to the deck until dry. Some builders use the "tape/Stick-Tac" method and run a bead of superglue in lieu of the water based glue but that's a risky proposition if it goes where you don't want it to. Superglue is a pain to remove.
Well, there are other methods of gluing railings besides mine, pick one that works for you and good luck in your project!