Another 1st ROMing question thread.

Im usually anal about stuff like that, but yeah, I don't really have time to deal with it for now so screw it, lol.
 
So since I installed purified my superuser has been trying to update, but it keeps getting a "package file was not signed correctly" error and failing. Is this because the rom has this built in and gets updated with that, or is this something I should worry about?