seamonkey-for-ppc has moved as Google no longer allows downloads
RELEASE NOTICE - SeaMonkey 2.26 RELEASE for PPC is available as of 2014-05-07
seamonkey-for-ppc - 2.26 RELEASE - Mac OS X 10.5.x - PPC
Latest Update - SeaMonkey 2.26
BTW - Subscribing to the following Mozilla discussion thread will let you know when an update occurs as I post availability of new versions there
PLEASE RESUBSCRIBE FOR UPDATES - for some reason Mozillazine changed the link !
register for updates at the SourceForge seamonkey-for-ppc project page