Vulnerable site?

I am using ' as the username and '=' as the pass.

It gives me an error, but not a failed log in error, but it still shows the page.
Sorry if it's a noob question I'm new to site hacking.
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why are you trying to hack a health care site? obammma mades it FREE!!!

Say what all you do is use ' and '=' as the password?

Unclosed quotation mark after the character string '' and CUSTOMER.MASTER_CUSTOMER_ID=WebUsers.MASTER_CUSTOM ER_ID and CUSTOMER.SUB_CUSTOMER_ID=WebUsers.SUB_CUSTOMER_ID and CUSTOMER.MASTER_CUSTOMER_ID=AddressDetails.MASTER_ CUSTOMER_ID and CUSTOMER.SUB_CUSTOMER_ID=AddressDetails.SUB_CUSTOM ER_ID and AddressDetails.CUS_ADDRESS_ID=AddressDetailsAddres s.CUS_ADDRESS_ID '. Incorrect syntax near '' and CUSTOMER.MASTER_CUSTOMER_ID=WebUsers.MASTER_CUSTOM ER_ID and CUSTOMER.SUB_CUSTOMER_ID=WebUsers.SUB_CUSTOMER_ID and CUSTOM'.

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