MANUALS:

There may be other sources, but I know you can find the i3 manual at:
Parts is Parts.net . I think they are the official source for Korg parts now.
http://www.marshallparts.com/content/estore_details.asp?product=153
Call: 802-464-0014 | Fax: 802-464-0016 | E-mail: info@korgparts.com
Owners Manual I2 I3,  SKU: OMI2, $70.00

I have an i3 which came with a set of 3 manuals: "Players Guide, Players Guide 
part 2 and Reference Guide"
You might contact Parts is Parts before ordering and find out what it is they 
are providing for that $70.

My own experience with the manuals was mixed. They were OK to get started with 
the basic funtions but difficult to understand when trying to get into more 
advanced functions. I would sometimes get confused and give up thinking I was 
stupid. I think the original manuals
were created by engineers who thoroughly understood the system but couldn't put 
that information into simple, clear and user-friendly terms for non-technicians. 
They seem to assume you already know all about the keyboard before opening the book!

I checked around and couldn't find an aftermarket book on the i3. Some of them 
are very good and clear. Usually written by people who really know the instruments 
and how to communicate in user-friendly terms. Perhaps the book offered by Parts 
is Parts is better than
the original set I got.

PROGRAMS:

Making Program sets on the i3 is pretty simple. You might want to start by saving 
your current Data set to disk (or at least your Programs). Then go to the "Disk" 
function button and go to page 1. The default setting is "Load one Program". Using 
the "C" key you can
access the contents of the Programs on the disk in your floppy drive. (in this case, 
the disk you just saved all your data to). Using the Alpha dial you can select the 
Program you want, and using the "F" key and the Alpha dial select the location you 
want to save the
Program to. Use the "Save" function to complete the action.

If you just got the i3, there is a wealth of Styles, Arrangements and Programs 
available online. These materials vastly expand the versatility of the i3. Some 
very tallented people have created and shared some quality resources. One of the 
best is Georg Oening in
Germany. You can find a lot of qualtiy materials for the i3 on his site:

http://www.angelfire.com/music4/iseries/index.html

I am also new to this group and was delighted to discover that there are also hardware 
expansions available for the i3. I recently ordered and installed a hard drive kit and 
memory expansion kit which vastly increased the speed with which you can load or save 
data in
addition to storing a large number of Styles, Arrangements, Programs, Songs, Midis, etc. 
The memory expansion increases the storage of User Styles from the standard number of 
4 to 32. Depending on what you do with your i3, these might be worthwhile enhancements.

Good luck

Ronwiz