Vaadin 6.8.16

Hello,
I have got an utility application written in Vaadin 6.8.18. Developed in eclipse and exported as a war file and deployed to Tomcat. I need to move another machine. How can I import it in eclipse. How can I download the 6.8.16 Vaadin version for Eclipse ?
Thanks

Do you mean the .jar file for release 6.8.16? Here: https://vaadin.com/framework/releases/6.8.16