Got my wall to start working yesterday! It is now able to post messages with correct username and and date times. I'm going to work on making it more efficient today with the messages loading once the page loads by transferring the mysql queries to the wall page instead of continuously traveling back and forth between the process page.
Hopefully starting AJAX by end of the day.
Overall: Lecture on AJAX today, wow, it was a lot of info. Definitely recommend being at least 1 day ahead of the lecture. It goes over information pretty fast and you will have better questions if you attempted the functions beforehand.