Its Okay. Don't worry. I also have an account with them and signed on all those places after reading the document.
Even if you did not get the xerox done earlier, no worries. They would give you the scanned copy of the agreement on your email within 2weeks of a/c opening. If you want to read those documents now, go to this
link and download them.
First of all, send them an email to activate security token for your account. They would send this to you within a week after activation. So, you can be sure that fraudulent trading is not perfomed by unauthorized persons.
And also ensure that you have the required margin. Because if you take delivery of shares on the additional 3/4 times margin provided by them and do not deposit cheque/transfer money within 7days, then they can square off the position without intimating you.
And for any of your queries, first approach their email helpdesk. They are quite efficient and reply within reasonable time.
Happy trading.