oh one more thing, if you are attaching trim Nurb surfaces, you may want to do this.
select one surface > hold right click > trim edge > select one edge you want to get ready to attach with another edge > shift select the other surface > right click > trim edge > shift select one edge to attach with the previous selected edge > surfaces > loft\
hope that works
9 months into Maya...and still learning...
0 experience with any other 3D programs