Thanks just took a quick look and that's the same mod, for some reason I never got the options for changing today vs. 24 hours etc, maybe another mod conflicts. Just re-installed for the heck of it and searched high and low and still no options to change it.
SMF's buddy system is rather week anyway. If someone is adding me to their buddy list I'd like to knwo about it and have the ability to approve, ignore, or block the person. The current implementation is more like a stalker list if IMO.