Linksys is complete garbage when it comes to Mac support. I think you can find better support for Linux instead of Mac at Linksys' site.
I'm actually heading to my local Apple Store tonight to get a non-Linksys wireless router to replace the one I have now. The thing "mysteriously" reset itself to factory defaults. Makes for a wonderful security issue if some war-driving wanker came around and found an open network with no protection and a default setup password.
BTW, I recommend
this utility if you ever want to upgrade your router's firmware. (As you can see by the feedback, other people have gripes with Linksys' support.)