I think the developer has lost interest, or is just too busy to finish the task. I paid him a little bit and was going to pay more after the finish, but I understand people get tied up with things. It's a shame however as the finished product would have looked splendid.
I'm not familiar enough with css to tackle it myself, even if I had the time. I guess my option is to remove the style folder from the forum and hope that someday someone will come along who can finish the few things that need to be done so it can be put on the forum.
I did temporarily switch the style on the forum and looked at the style.php again, and there was no noticeable change in it. I purged the cache in my ACP and refreshed my browser.
I appreciate your input, but I'll just leave the forum be.