Troubles with regions Prt. II: How do I set theme_comment_wrapper() to a specific region?

While still fighting with regions in Drupal 6, I managed to parse nodes to a different region, so we moved on to the $page of a $node. Now the problem moves to displaying comments, unfortunately this is also quite different from the former situation; since I still want to render the $comment variables through the normal comment.tpl.php.

When searching for manually placing content on regions, I ran into the book page with a small example. This shows how you can display a summary of the comments in a particular region. Nice, but not enough. I'd like to show the comments wrapper in the same region as the node is displayed. Using the functions in template.php described on the former examples, I get errors telling me I need to define the vars individually, instead of just passing the $comment object within a preprocess function.

Again, I'm wandering in the dark. How on earth do I get the theme_comment_wrapper in my own $region?

Thanks!