But I remember once that when I have installed v2.0 it was working fine in both live and sandbox mode.All things were working fine.But once I have changed the english language file of payment module,after dat it was not working.Also I have uploaed the previous original file,but still it is not working.Finally I have moved to paypal payment standard 3.2 version..Here all things are fine but order history is not getting stored..I am so much worried.Please find some solutions for me.Please help me to get out of this..