trouble downloading and using the released jQuery UI and tabs

trouble downloading and using the released jQuery UI and tabs


am having a little trouble downloading the zipped release of jQuery UI
from
http://code.google.com/p/jqueryjs/downloads/detail?name=jquery.ui-1.0.zip
unpacking it and using it in a simple demo locally along with a
reference to jquery-1.2.1.pack.js and jquery.tabs.css.
if I use this reference for jQueryUI:
http://jquery.com/files/social/js/jquery.tabs.js
or
jquery.tabs.pack.js (which I downloaded from http://stilbuero.de/jquery/tabs/
it works but then .tabsAdd(...) fails (function does not exist) even
using the same selector as in the call to .tabs(..)
any help would be greatly appreciated
cheers,
Mark