Hi there,
 I have a wedding cake coming up and i'll need to use separators like the one in the links below:

http://api.ning.com/files/50ZQXoFZl1USvrRJuMgdPtQSqTB8dKQJ9Pm8OBgGg2lsIrOoh0z7Er247t4eTgtWt4*j7tIB5cIaWa1fOXyjxpl-xhSqnLKd/cake998.jpg

...............Do i need to dowel the separators? if so, how please?.....

   What is used are styrofoam discs wrapped in ribbon/fabric.  You put a cake board top & bottom - the same size as the disc. Depending on the size of the tiers yes, I would dowel under the disc - if it is a 6" disc, then put the dowels around a 5" circle inside that 6" space.  For one tier above the separation use 4 dowels; If there are more each lower tier will need 1,2 or 3 more dowels depending on the sizes and how many more tiers it is holding up.

...........How do i glue the cake on top of the separator to ensure it stays in place??........

  Basically the same as you would if it were cake - a generous blob of icing :)

Hello Kakeladi,

Thanks so much for your helpful response, very well appreciated. Thanks for your time!!!

Abimbola