Yes, are those enabled? They probably should be.
Jumi allows you to write php code into an article without having it stripped on save. It looks like they probably used that to write a script and place it on that page to retrieve the web pages, and it got stripped out when saving.
What's showing is most likely only part of what needs to be there. I'm thinking you need the rest of the code that made up that script, and then you need to insert it in the page using Jumi.
It's hard to look back on someone else's work and think the same way they did, but this seems most likely to me.
If you can find that script mhs_show.php and save it as a .txt file and attach it to this post, we might be able to figure out how they were trying to make the connection to these web pages.
I don't know where the pages are coming from, or what is actually supposed to show on the site or how the data is being collected. There's no way to tell just from what's on the page now.
Ed