Install to localhost

Hi,

New to codeigniter.   I have a new website that is running codeigniter, developed by someone else.  I'm taking over the site, and would like to set it up locally, on a windows PC, for testing and further development.

I have set up an Apache24 server in my root on C drive.  It conflicted with my IIS server and wouldn't run so I have it listen on 127.0.0.1:122  and it now works (I found to do this on another forum).

I have downloaded the site, via FTP, to the htdocs directory.  All I get when attempting to display the site is a blank page.  I made some test pages in php and html and those will come up okay.

I've changed the base_url to a few things, like "$config['base_url']    = 'http://127.0.0.1:122/';" and other variations but all I continue to get is a blank page.  I've tried to turn logging on in php.ini but the only information that comes up in the error.log file is start up/shutdown server information.

Any ideas or thoughts on what I can do to get this running?

thanks!