Hello,
can you tell me which page?

I was asking you because the page you listed has no jQuery library loaded.
ppc.safejqueryplugin.start.js
ppc.safejqueryplugin.end.js
jquery.tools.min.js
are not jQuery libraries.
You need to use jQuery Easy plugin to add jQuery (select jQuery and specify a version).
Moreover, $(document).ready(function() {
needs to be replaced.
Use 'fix document ready' from the advanced options.
Please let me know when you have done this

You have to find out which version of jQuery you need to use, I cannot find this for you. Go to your module's page or ask the developer himself. That also may be in the documentation of the module and/or its options.
If you want to be quick, just set version 1.7 and we will see what happens.
The only other thing you have to do is set 'fix document ready' to 'yes'. It will replace $(document).ready(function(){
for you.