how do I connect Ready API to ldap database?

Hi

I need to connect to ldap database and wonder  how I can do that. I use 64 bit windows and Ready API 1.50. I found this link 'http://community.smartbear.com/t5/SoapUI-NG/Resolved-LDAP-Data-Connection-and-Data-Source/td-p/35559

it says some jar files need to be added. I am new to this and any help is appreciated. I did use ldap before but nor from Soapui.

Thanks

J