how do i alter comments and comment form
To put this in my module I actually just did put the following code in my module:

function mymodule_preprocess_comment(&amp;$vars) {
$vars['submitted'] = $vars['created'] . ' — ' . $vars['author'];
switch( $vars['node']-&gt;type )
 {
 case 'myContentType':
 $vars['title'] =FALSE;
 $vars['content']['links']['comment']['#links']['comment-reply'] = FALSE;
 $vars['content']['links']['comment']['#links']['comment-edit'] = FALSE;
 $vars['content']['links']['comment']['#links']['comment-delete'] = FALSE;
 break;
 }
}