Well I just got proftpd up and running finally but one thing i did notice is that when I connect to the server I am able to view the entire directory of my hard disk! I know that chroot solves this problem, and don't tell me to add DefaultRoot ~ cuz I did that allready and it didn't even touch my file permissions. I heard from somewhere that I'm supposed to add certain folders to the home directories of each user so that proftpd can propogate the proper files to those folders. Anyway this is really stumping me I tried everything through webmin and I got so far, at least I can still view the whole directory tree of my hard drive but I can't download/upload or modify any files to those directories. I guess this is good enough, but still though, kindof a pain. Thanks in advance for any replies

Really, that is what you add:
DefaultRoot ~

After changing the proftpd.conf file you'll need to restart the server. To do that, check:
ps aux | grep ftp
And note the PID of the process, then:
kill -HUP pid
Where pid is the number you grabbed from ps. If you are running this in xinetd or inetd mode, then you'll wanna send HUP's to those services instead.

Cool

ah! didn't realize I had to restart the server

You can alternatively (not recommended by me though since we are after all, in linux..) do a reboot, this restarts your server as well

Cool