I have implemented JCarousel in the i7MEDIA site on the Portfolio page (http://i7media.net/portfolio).
To do this, you need to include a reference to the JCarousel javascript in your layout.master and reference the CSS files in your style.config. Once you have this done, you can add an HTML module to any page and then include the JS that initiates the carousel in the source of the HTML module. Afterwards, add another HTML module and include your markup for the carousel (all of your images).
This is the general idea. I will work on step-by-step instructions but I wanted to get some information to you ASAP.
HTH,
Joe D.