chroot accounts with sftp access

[fusi0n]

Hi,

I have search high and low and I have not been able to find a solution tha works for me so I thought I would try you guys

I have a web server running FC4 and vsftpd with all the updates done. I want to be able to lock users with sftp access in there home dirs. So far I am only able to do this with ftp and it works like a charm. Although when I allow the users sftp access they are able to browse right up to the root folder. Also, is there a way to allow sftp without allowin ssh into the box for that account?

Thanks in advance for any help, And I apologize if I missed a post somewhere on this but I have come up empty handed over the last few days of playing with this and trying to get it to work.