setting flags

[Teresa L. Kamakea]

I'm having a problem deleting files that I own and have full 
permissions on. I believe that it is because the schg flag is set.

How can I verify if the schg flag is set and how did it get set? 
Also, I understand that schg flag may not be able to be switched if 
kern_securitylevel  is not set to 0 or less.

How can I verify which kern_securitylevel is set to if my 
/etc/rc.conf file only has kern_securelevel_enable="NO" and does not 
have an entry for kern_securelevel?

I am running FreeBSD 5.1.