I just got a T530 as a grad gift, but I can't seem to find a way to activate numlock. I rely on alt-codes on a regular basis, do you guys know any way to accomplish this?

I believe you'll need to use Fn+ScrLk key to activate Numlock. That said, I'm taking this from my X200s. I looked at a few pictures of the T530's keyboard and it looks like the integrated Numpad was removed.

In the future, it would be best to start your threads in the correct forum to ensure that you get the right help: http://forum.thinkpads.com/viewforum.php?f=68

Eureka: X200s (7470-5HU), Arch Linux
Mirandra: T22 (Unknown), Arch Linux