This should help with the basic button\pin placemant:
http://army.ca/forums/threads/21745.0.html
Your rank pins go on:the collar of your green shirt
:the collar of your great coat
On yor green shirt you wear no name tag when wearing your tunic and one set of new gold EME slip ons are worn on the shirt.One set on your great coat and one on your rain coat(CF green).None should show rank.
For yourself,in relation to collar dogs,the rule of thumb is "tip and tail,facing inwards".You should have been issued a right and left collar dog.You position them with the tip of the lightining bolt and the tip of the tail running along the seam.