android won't update

[hackbenjamin]

running 2,2 blazn build with the new startup utility here's the thing when i try to unzip and install the updates it gives me an error screen
An unexpected error has occured in XDAndroidStartup.exe.
Select Quit and then restart this program or select details for more information

ZipEntry::ReadDirEntry(): Bad signature
(0x2E76174) at position 0x009378EF



any ideas??? i am at a loss