Fix eight minor issues with two websites

I need someone who can help me with the eight relatively minor website tasks noted below - within the next 24 hours. I expect the work should take no more than two hours in total.

www.avse.edu.au - fix security issue - see attachment (screenshot one)
www.avse.edu.au - adjust security settings to reduce spam
www.avse.edu.au - remove 'link isn't rated' question mark
www.avse.edu.au - ascertain and fix why the URL link occasionally appears as a Facebook page when copied and pasted
www.avse.edu.vn - edit 6 simple tables so they're mobile friendly
www.avse.edu.vn - fix a format problem in the footer
www.avse.edu.vn - insert a burgundy border around three images
www.avse.edu.vn - adjust security settings to reduce spam

Cheers, Peter