jQuery Checkbox and Radio Button Replacement does not work with UI 1.8

jQuery Checkbox and Radio Button Replacement does not work with UI 1.8

I really love this plugin for checkbox and radio button replacement:

http://www.protofunc.com/scripts/jquery/checkbox-radiobutton/

Except that it seems it no longer works when using jQuery UI 1.8. The script doesn't throw any errors, yet it doesn't work either... I'm not sure if this plugin is still maintained or not yet I haven't been able to find an alternative plugin that works as nicely as this one does.

Does anyone have an idea on how this plugin might be updated for jQuery 1.4.2 and UI 1.8? I hate having to stay with 1.7.2 because of this plugin. :/