No, not that kind of tweaking. I’ve been hunting down bugs in the presentation here, and so far, the bugs are winning.
For no reason I can fathom — I’ve heard everything from “your theme is suffering from bit rot” to “your host handles PHP/FCGI funny” — the Live Comment Preview is no longer live. Checking the second premise — I installed it on a different site with a much-newer theme, and it didn’t work there either — I have switched to an actual preview button, which will display the results above the comment box. If you have any problems with this, let me know; WP-Super-Cache seems to look at it funny.
There are other issues, likely of no interest to the reader but which drive me up that proverbial wall.