hook_form_alter

Are there any modules that add voting widgets to new comment forms in Drupal 6? Everything I've seen (including the Rate module) adds widgets to published comments.

Fivestar and Rate can prevent users from voting on their own content but my use case is the opposite: people can vote on their own comments but not on the comments posted by others.

We have a web site, http://articulation.statecenter.com that makes heavy use of the Workflow module. We have various user roles that have permissions to move nodes from various states in our workflow process. Workflow provides a simple comment form for these transitions and our users love that feature. Here is the rub. We have a monitor user role whose job it is to monitor the progress of these nodes. The good users of this role would like to be able to enter comments in the workflow log as well.