Uploading large files timing out

I've found in other forums that when uploading large pdf's and jpgs in excess of about 2 or 3MB, the cms seems to be timing out and cutting the transmission. I am trying to upload a pdf 11.5MB large and every time I attempt to upload the 'iframe' window that shows the upload screen turns into the cmsb home page, so it's like a picture-in-picture of the login screen. I have to refresh the page to clear it. The recent posts explained this occurs due to a limit within the php.ini file... I believe this is the code in the php.ini file that needs to be adjusted, however below is what I've changed it to... (and I changed it in both php.ini files for phpv4 and phpv5.

;;;;;;;;;;;;;;;;;;;
; Resource Limits ;
;;;;;;;;;;;;;;;;;;;

max_execution_time = 600 ; Maximum execution time of each script, in seconds
max_input_time = 600 ; Maximum amount of time each script may spend parsing request data
memory_limit = 100M ; Maximum amount of memory a script may consume (8MB)

I've posted my entire php.ini file in a previous discussion here in case you need to see it:

http://www.interactivetools.com/iforum/Products_C2/CMS_Builder_F35/gforum.cgi?post=74717;search_string=upgrading%20cmsb;t=search_engine#74717