when you create a project in cocos3d the default pod file syntax is [self addContentFromPODFile:@"hello-world.pod"]; you replace it with where u use any node name
withName:@"HelloText"
[self addContentFromPODFile:@"hello-world.pod" withName:@"abc"];
And where you fild cc3meshnode replace getnodenamed with you set above
CC3MeshNode* hellotext = (CC3MeshNode*)[self getNodeNamed:@"abc"];