jCarousel and image zoom
As described on the jCarousel module page:  


  Note that you will almost certainly need to do custom CSS in your
  theme in order to use this module.


Use Chrome Inspect, Right Click > Inspect aka Chrome Developers Tools or Even use Firebug on Firefox to inspect the applied css properties and override them in your .css file in your theme folder "sites/all/themes/themename"

A basic CSS Knowledge is what you really need. 

To Change the Settings of jCarousel, Go to your views and find the "Format" Area. Make sure that the "Format" is set to jCarousel and click on "Settings" beside it. A new pop-up will open. Inside, You will find all the setting related to your jCarousel initiator.

To change from Horizontal to Vertical scrolling, Click on the Advanced, Scroll down then Check the "Vertical" checkbox. See Screenshot

This is the most easy way to do it. If I understod your question rightly.