Adobe Widget Browser

Adobe Widget Browser

Hallo!
I' m new here, and new at web designing..
1. I' m using dreamweaver cs5   Adobe Widget Browser to import widgets in my page. In that Browser there is an older version of jQuery (1.7.2). I downloaded the newer version, but when trying to import it from the zip file, i get an error message "There was an error importing the widget:

[3003] File or directory does not exist." Why?

2. I'm would like to change the language for my datepicker (i downloaded the corresponding .js for greek language) but i don' know how to use it... 

Thanks
Nikos