Problem With Duplicating/welding Vertices

Maya
1

first time using maya, so im kinda clueless

i have points a, b, c, d, e all in a semi-circle

a and e are connected to c

b and d are connected to c

i want them to connect to b and d, respectively. because when i duplicate the figure (its part of half a t-rex head, and is along the centerline) and then smooth it, it doesnt work because there are 'holes' because the nodes arent connected properly

what would be ideal is a way to just place a vertex on a line, and then connect the lines i want to it. or, if i could delete the edge, and then choose two vertexes and create a new edge there, and a face from that edge and two others, that would work

how can i do this?

2

ok, i figured that out, im almost complete my model

one problem though, ive created an instance of parented objects and when im trying to weld the two objects on the left side, the ones on the right side wont respond. just from looking around i think it might have something to do with normals? i have no idea how to fix it. heres a screenshot, and the file too. the problem is at the base and top of the neck/head intersection, the sides worked out fine...

http://www.mediafire.com/?dmijed1wvj

http://imageshack.us

i would really appreciate some help. Please! thanks