Is there a way to access old byond pager messages? I noticed they get deleted after a week or so?
Nope, messages are purged from the system after so many days, they're not stored anywhere beyond that.
Dang, Higoten helped me build a really awesome system and he doesn't seem to remember what system I am talking about. Its quite difficult to explain all over again to him.
Yeah, it would be nice if we could store that stuff, but BYOND doesn't have the resources it would take to store that kind of data if said data was barely ever used for anything.

I've recommended the ability to save messages locally a few times but it's not a big priority thing.