spider.php will NOT follow link
 

I can't figure out the criteria which spider.php uses to decide whether to follow a link. Please take a look at:

http://www.barik.net/archive/

Every link is found except for all of the months! (Jan, Feb, Mar, etc.)! Can anyone shed some light on why this is? Did I forget to turn on an option? Does spider.php not look at links if they are formed a particular way?

Any help is appreciated,

Titus Barik