It looks like there are a couple of small things falling over, no biggie, should be easy to solve.
Firstly, I see you have the following scripts in the <head> section
And near the bottom of the page (probably in your footer.php)
It seems the first jQuery script (1.7.2) isn't on the server, no matter, we'll get rid of it anyway
What happens next is that your faq.js gets executed, but it of course doesn't run because jQuery isn't yet defined.
Next up, jQuery is included again, which is fine, but if the first jQuery *would* have loaded then it would now be overwritten.
Now the slides.min would run, but because there is another reference to jQuery in the footer, the $ variable gets overwritten again, which means the slides plugin gets deleted inadvertently.
I would recommend that you place your faq and slides plugin script in the footer of the theme, remove the reference to jquery 1.7.2 from the header, and remove the reference to jQuery 1.4 from the footer.
I am assuming that the jQuery 1.5.1 in the header is the one that Wordpress injects into the header, let me know if this is an issue for you and I can show you how to prevent this from happening or how to change the version.