I downloaded, JBPM and when I am compiling the installation, I get the error at the downloading part of the eclipse.- refer to below screen shot/ I have downloaded Eclips and saved as a zip file in lib , and run the builder again. Still the error is same.

Can you suggest a solution for this. ? I am using JBPM 6/

Further, my plan is to develop a simple workflow where people can log on line and submit their leave applications, admin to approve, and provide reports on how they have utilized their leave entitlements/ how many available leave are there etc.

So, Your comments on the above point also welcome as I am new to JBPM.. Trust this system can easily modded to something like that. 

Kindly suggest me if I need to install, some other plug ins or tools to make above development easier.