Hello,
if your site is working without the plugin, just do not use it. If you are inexperienced with jQuery, avoid enabling it in the backend. If jQuery is disabled, it does nothing, except if you use advanced settings like 'remove blank lines'. If the plugin breaks your site in the frontend, there is an issue: you may have set the wrong version of jQuery (a version that does not work with the extensions you have). They are many reasons a site can break. Mostly because some extensions are not compatible with others.
What do you need jQuery Easy for? Do you have jQuery issues before hand? Do you want to reduce the library call load on your site? I can definitely take a quick look and see what may be the problem. jQuery Easy works out of the box for some people but more times than others the advanced features are necessary for a site to be fine tuned. That is probably why your site breaks when the plugin is enabled. The standard settings are not enough to fix the problems you may have.

After a first pass at the code, I see that 3 versions of jQuery are loaded on the page called from the menu item 'Write'. The template loads one version (jQuery 1.7), the community component loads one (1.6) and jReviews also (1.7). That is way too many. Your site will work at best if it goes down to one load of the jQuery library only. Check if you can disable jQuery in any of these components. jReviews loads jQuery after everything else, which is probably why it does not work correctly.
One totally different issue: the images loaded on that page take a huge amount of space (embedded in the code). You probably should consider loading those images differently, that could put browsers down to their knees. You will understand what I am talking about when you look at the source code of the page.

I was talking about the images in 'how to submit a review'.

If you are trying jQuery Easy plugin again, do not forget to turn on jQuery UI also ( v1.8 ) as it seems to be needed by jReview.

If that still does not work, you will have to ask for support to the folks that made that extension.