Hello ,
I don't see anything ultimately wrong from looking at the code, other than a best choice would be to select the jQuery version from the Joomla framework (one of the options in the jQuery versions) and make sure you don't have multiple instances of the jquery 'no conflict' code.
One major difference from your Joomla 2.5 version is that MooTools was the core component of the framework, with possible extensions loading jQuery. Now, in Joomla 3, you are in the situation where jQuery is loaded with the framework and extensions (like easlideshow) bring back MooTools into it.

Thank you David. The screenshots and the code prove to me that the plugin is setup correctly.
I don't think the error you are having on the slider (running on MooTools) is actually due to a conflict with jQuery.
Joomla 3 loads MooTools 1.4 and the module you use as slideshow was built for MooTools 1.1 and 1.2. I would suggest you contact the developers of the module and make sure their extension can actually work on Joomla 3.3.

Let me know what the developers tell you, that may help me understand what is wrong here. Thank you!