For gluing resin to resin parts, you should use 5 minute, 2 part epoxy (available at any hardware store). For gluing disimialr materials (i.e. metal to resin), use super glue.
Before you do anything else though, make sure you wash all the peices in hot, soapy water and allow to dry overnight. This will get rid of all the release agents and allow glues and paints to adhere.
-Fred