You could override those specific elements from the Custom CSS tab in the ACP.
When changing usernames
What happens to the old posts etc. I've got a member on my forum that has changed his username a few times and deleted a lot of his old posts, however he now can't seem to find any from his old username. Are they piled into the UID of 0 range? As it says he still has 450 posts, but only posts/topics as his current username appear and searching doesn't seem to find much.
As it says he still has 450 posts, but only posts/topics as his current username appear and searching doesn't seem to find much
can you PM us a link to his user profile? sounds like a bug, but as @baris says, all posts are tied to UID so changing username won't make a diff, but possible something else (deleting posts?) could affect that. Tried fooling around a bit on my dev env, couldn't repro so I don't really know.