How to install an rpm.tar.gz printer driver?

[joe at actionline.com]

Still need guidance:

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>> joe wrote (in part):
>> Still trying to find how to get our Canon mx439 wireless printer
>> to work from our Linux system ... found driver but how to install?

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Joseph Sinclair wrote (in part):
> gunzip cnijfilter-mx430series-3.70-1-rpm.tar.gz
> tar xf cnijfilter-mx430series-3.70-1-rpm.tar
> rpm --install <whatever the .rpm file(s) might be in the tarball


After gunzip and tar xf ... a directory named:
cnijfilter-mx430series-3.70-1-rpm
included the contents listed below.

So how should I proceed?
Should I use 'install.sh' ...  if so, how?
Or should I use 'rpm --install <one of the rpms -- which one?>

drwxr-xr-x 2 joe  4096 Dec 19  2011 packages
drwxr-xr-x 2 joe  4096 Dec 19  2011 resources
-rwxr-xr-x 1 joe 52202 Dec 19  2011 install.sh

packages:
-rw-r--r-- 1 joe  125911 Dec 19  2011 cnijfilter-common-3.70-1.i386.rpm
-rw-r--r-- 1 joe 1743678 Dec 19  2011 cnijfilter-mx430series-3.70-1.i386.rpm
-rw-r--r-- 1 joe 1806283 Dec 19  2011
cnijfilter-mx430series-3.70-1.x86_64.rpm
-rw-r--r-- 1 joe  140545 Dec 19  2011 cnijfilter-common-3.70-1.x86_64.rpm

resources:
-rw-r--r-- 1 joe joe 3914 Dec 19  2011 printer_zh_utf8.lc
-rw-r--r-- 1 joe joe 5294 Dec 19  2011 printer_ja_utf8.lc
-rw-r--r-- 1 joe joe 4687 Dec 19  2011 printer_fr_utf8.lc

install.sh = 1906 lines of code, beginning with this:

#!/bin/bash

##########################################
##
##  Canon Inkjet Printer Driver for Linux
##  Copyright CANON INC. 2001-2012
##  All Rights Reserved.

1900 lines of code follow