Sharpleech is not working

I have created a test forum which is based on phpbb 3.0.4.But when I tries to login into my forum with sharpleech it says login failed.But in my previous test forum
 santanu.freeforums.org
sharpleech is working.It is also phpbb3 forum.
I am interested in phpbb modification and my phpbb3 forum is newly installed from phpbb.com.Is there antibot system in the phpbb package?
And what to do now to run sharpleecher in my testing forum.
Answer #1
for sharpleech choose correct forum brand and give a correct login url