Trying to install from ftp

[CHris Rich]

When i try to install some extra things from ftp using
/stand/sysinstall i keep getting unable to extract distribution try
again? of course i try again and it still doesn't work. When I first
tried to install from ftp it gave me an error that 5.3RC1 could not be
found on server..so in the options I changed it to any but I still am
unable to download it.

output of uname -a: 
FreeBSD arwen.localhost.com 5.3-RC1 FreeBSD 5.3-RC1 #0: Mon Nov 24
18:31:21 CST 2003

So what am I doing wrong?

Thanks in advance