Quote - I haven't found a good tutorial on how to make a MS agent from a poser figure, nor a wide range of voice files (kids, adults, cartoonish voices, etc) Any links come into mind?

You can find all the info you need to make an agent character at the MS Agent site. Basically you have to create the individual bitmaps with a background color you can make transparent and then use the agent character editor to assemble the animations and compile them into an acs file.  Unless they have changed the specs, you have to use a 256 color palette. Most of the animations start and end at what they call the rest pose and are 8 to 12 frames long. As I said before you have to have individual image files and if I remember right they had to be in bmp format.

I originally got Poser to create an agent character. It took me a little over 2 months to get the character done. At the time it was the first female human agent character.