I'm not really sure how to go about explaining or fixing this problem, but it is prevelant in all of the sites on which I've installed geeklog.
It seems that geeklog is just including the PHP in the links, rather than processing the code. Here is an example of how my links appear:
http://my.rzen.net/geeklog-1.3.11/public_html/' . $base_url . '&page=' .( $curpage + 1 ) . '
when I checked the lib-common.php that generates these links they actually appeared as:
i'm very much stumped here, can anyone give me some insight?