You must be "rebuild thread information" after installed, my 4.1.1 worked well.

Working fine, however, even though I changed the text color in the stylevar the text is not changing colors? Any thoughts?

Thank you for this mod. I have done some tweaking to get the thread starter display in the post header bar as shown in your screenshot. How did you position yours? I had to edit the CSS and specify a right margin of 60px and vertical margin 0px to get it to fit correctly. However, in longer threads, when the post count increases into the double or triple digits, it will increase the amount of right margin required for proper positioning. Is there any way to position this relative to the post count number so that it "floats" with the post count number as it increases?

You could always go into threadstarter.css, remove the variable reference and manually input a color. Worked for me.