If you have SunScreen(TM) SKIP 1.1.1 currently installed on your system, you should remove the SKIP packages before installing or upgrading to Solaris 7. The packages you should remove are:
SICGbdcdr
SICGc3des
SICGcdes
SICGcrc2
SICGcrc4
SICGcsafe
SICGes
SICGkdsup
SICGkeymg
SICGkisup