Ok I have a UV map that isn't too bad using the archimap tool, but it's split a couple of faces that I didn't want split - I can weld those together, but it's also put one face linked to others where I don't how do I break the vertex points in two so that I could move the face and weld it elsewhere?

Do I just have to go back and be more clever with the edges I selected as seams and then use unwrap rather then the archimap script?

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Toolset: Blender, GIMP, Indigo Render, LuxRender, TopMod, Knotplot, Ivy Gen, Plant Studio.