Userdir, how to set up?
 

For a cpanel server how do you set up userdir to work so that you can access all files properly through the servers ip, ie: http://11.222.3.123/~account/.

I enabled UserDir in the default VirtualHost entry for the main IP for apache and the sites are acessible via the IP, but some links are broken. Instead of going to http://11.222.3.123/~account/page1.html it goes to http://11.222.3.123/page1.html.

It should work.
Are you using a control panel? does Apache has the same result?