I've made a new plugin, that supercedes this one.
Please check jQuery.SerialScroll.
It's very small and offers high customizability, can be used for slideshows, site navigation, news tickers, etc. (These 3 exemplified in the demo).
jQuery.ScrollShow is a very customizable slideshow, that relies on jQuery.ScrollTo, to slide(scroll) the items. Documentation is included in the source file. The plugin is still in beta stage, but will be soon (hopefully) stable. Feedback and bug reports are very welcome.