MacPPP v2.5 is an upgrade to the current version of MacPPP. Apple recommends that all AICK 1.0 users upgrade to MacPPP v2.5. You can find MacPPP v2.5 at Apple Computer's online software update areas.
These articles can help you locate the software update mentioned:
* "Where To Find Apple Software Updates" -- Lists online services for free Apple software updates.
* "Obtaining Apple Product Support in the USA" -- Lists 800 numbers and online services for software updates, Apple support information, and a subset of the Apple Tech Info Library.