Need some help figuring out how to use a library

[Rob Cozens]

>Is there some documentation on how to copy libraries from one stack to
>another or can someone tell me how to do so for libSMTP ?

Without have looked at Shao Sean's example, I can only give you 
general thoughts:

A library stack, as traditionally viewed, is a container of handlers 
(in the stack script) and resources (eg: images).  The handlers & 
resources in library X.rev are available to any control/handler in 
any stack that includes 'start using stack "X.rev"' before using 
them.  (FYI, stack "X.rev" receives a libraryStack message when it is 
placed in use.)

Multiple stacks can be in use at any time, and their order in the 
message path is the reverse order of their receipt of libraryStack 
messages (ie: the last stack to receive libraryStack is first in the 
message path among stacks in use.

Here's a sample from SDB_Utilities' preOpenStack handler:

   get the effective fileName of me
   set the itemDelimiter to "/"
   put "Serendipity_Library.rev" into the last item of it
   if there is a stack it then start using stack it
   else
     if the platform is "Win32" then
       get specialFolderPath("Documents")&"/Serendipity_Library.rev"
       if there is a stack it then then start using stack it
       else
         beep
         answer "Please install the 
file,"&&quote&"Serendipity_Library.rev"&quote&&"in my folder and try 
again."
         close this stack
         exit preopenStack
       end if
     else
       beep
       answer "Please install the 
file,"&&quote&"Serendipity_Library.rev"&quote&&"in my folder and try 
again."
       close this stack
       exit preopenStack
     end if
   end if

-- 

Rob Cozens
CCW, Serendipity Software Company
http://www.oenolog.com/who.htm

"And I, which was two fooles, do so grow three;
Who are a little wise, the best fooles bee."

from "The Triple Foole" by John Donne (1572-1631)