I tried openingthis link provided by you
http://www.successfactors.com/en_us/lp/free-trial/sap-pe-trial.html
I entered the details and clicked “Submit”.
I did not get any free trial version for Success Factors.I get an error message.
A phone number is provided-8008450395 , I called and the person says wrong number.
Do you have some other contact no. available? Please do share with me .
Please check the below screenshot for error message.