Ajax Tabs plugin stopped working

Hello, I am helping someone with a website that was developed a few years ago and someone installed the Ajax Tabs plugin.
Basically, this is the problem, the plugin used to have these arrows spinning around on the Home page (until the user scrolled or clicked), and I think it might have been a slide show that was loaded too. At one point this feature supposedly just stopped working.

I am unfamiliar with the plugin, so I am not sure what exactly the effect is and what it might be that I need to do to fix this.
I’m reluctant to upgrade the WP for now.
Also, is there a way to upgrade the plugin perhaps?
Or do I just need to change a line of code somewhere. I already did notice that some reference links were outdated, so maybe there is some link that is not being loaded somewhere..

Any help would be appreciated.

Here is the website:
http://soisystemscanada.ca/

Here’s the plugin developer site too (I will try sending them an email too)
http://www.dynamicdrive.com/dynamicindex17/ajaxtabscontent/