Here is my tutorial for "creating morphs using a magnet in Poser".
The tutorial also dicribes how to resave a character and how to export a morphtarget.
It is written with newbies to morhing with magnets in mind.
Enjoy!
Below is the link to the zip containing a word document that step by step explains stuff with acompanying images.
http://posetteforever.com/files/Creating_a_morph.zip