Display Username CSS on Node List

[INeedHelp92]

I'm looking for something that will do this:

I'm pretty sure it won't take ten minutes, would really appreciate it if someone would help with this.

Thanks.

 

[EsKuel]

I made an addon to do this, so if you still interest, you can download it here :
http://xenforo.com/community/resources/add-username-style-to-last-post.1031/

Also if you can tell me if everything works fine with my addon, it'll be great, thanks