How to put make Marth have a different sword

[FF7Frieza]

I really need help with this... I got a request to put Roy's Sword of Seals over Aqua's Sword... I tried replacing the polygons and Vertices and Normals of the sword with Roys... i am stuck. even though i usually could do this... please someone tell me how... if it requires Vertexing... i can't do it

[Zach9o9]

How quickly pages fly by!

Yeah, I haven't been having much lucky myself.