Spidering of PHP generated pages

[jokes4mobiles]

Some of my sites are created using a PHP script called 'Cutenews'.

The script generates the webpages as they are requested.

For example the main page of a section would be
http://www.jokes4mobiles.com/family/index.php

The script generates links to a more detailed story or comments and the URL for these is something like
http://www.jokes4mobiles.com/family/...48523&archive=

My qustion is does Google see this as two pages and therefore spider the more detailed page which should get a better relevancy or do the two pages appear as only one page to search engines as the filename (upto the ?) is the same?

Thanks for any advice on this, I think it's something we should all know