Change a users Home Directory

usermod -d /home/userid userid

I did that, but got this error bash: usermod: command not found.  Do I need to do it from a certain location?

Other easy way is to edit the /etc/passwd file

Manually change the user and change its home directory

Easy: As root edit /etc/passwd using texteditor and modify Field No 6.
Fields are separated by colon (:)
Entry loks like
username:x:uid:gid:Comment:/home/username:/bin/bash

You have to the root user to do so or you have to use sudo

heh, tried that before and had some major issues after the edit, would like to do using usermod,  I am logged in as root, but still getting the error: error bash: usermod: command not found

You became user by doing
su


You should have done
su -

Just guessing because your path is not set for root user