unclean filesystem refusing to salvage

[Warren]

im running FreeBSD 5.4 and have /var as well as all the other filesystems not 
clean and when going to single user mode mounting all and running fsck -y ... 
it refuses to slvage anything and is causing multiple hassles with my 
computers stablity and running.

How do i fix this or what  may  be causing this ?
-- 
Yours Sincerely
Shinjii
http://www.shinji.nq.nu