Never worked with Wings, but cant you simply manually create
new Polys/triangles that connect the vertecies.

(or merging the vertecies, wich is even less work)

Some small recent games of mine:
Griefer 4k http://damocles11.byethost9.com/griefer4k.html
Kobold 4k http://damocles11.byethost9.com/kobold.html
Cave 4k http://damocles11.byethost9.com/cave4k.html