When I try to update the austerity build i get this message??

LiteStepDir found: [C:\LiteStep]
UpdateBuild running from: [C:\LiteStep\utilities\UpdateBuild.exe]
parameter to UpdateBuild: []

link to latest build: http://leaf.terica.net/software/releases/lscore/LS-0.24.7-RC1.zip
INSTALL: will attempt to install build from archive: [http://leaf.terica.net/software/releases/lscore/LS-0.24.7-RC1.zip]

ERROR: attempt to download latest build failed (HTTP/1.1 404 Not Found), exiting

build was not installed