not really lol but its not a straight forward mod to install though.
Thats the site back to normal, including the products, I made a copy of the database and images so you havent lost any products at all

I've installed the ceon mod in for you aswell but you will need to go into your categories and products and get it to generate the urls for you.
Easily done, go into your store admin > catalog > categories/products and click edit (small green icon on the right hand side) on each category, then click save and it will auto generate the new url for that category,
do all your categories first then do the same on each product (click edit, then preview and insert, on the products)
Thats the only problem with the ceon mod, it doesnt auto generate the new urls when you upload a csv, you need to go through the products and categories to get it to do that.
Dont use that image handler again

its more trouble than its worth to be honest. I dont really like those image hover mods anyway, I find them annoying when Im browsing a website, best just sorting the image sizes in admin > configuration > images and enlarge all the thumbnails on the site to a decent size, 150px height for most and you can get away with making the thumbnail on the product pages at 250px or 300px
on the product pages there is a decent image handler that will enlarge the product image when clicked on, you dont need an extra image handler for that
<edit to add>
before you install a mod on the site, do a quick google search to see if anyone else has had any problems with it before you use it
