hi Vger,
Thanks a lot for helping me. actually it isnt my domain, the domain owner said it has SSL installed.
and to be sure it has https connection it will change from http to https (and a lock) after clicking checkout and so on.
well, this is my story:
this website already had an existing shopping cart(osCommerce) and authorize.net payment module that works. it works a couple weeks ago, it already had successful transactions.
And just a week ago, someone who has access made some upgrade or additional module. the module was something like 'seperate pricing per customer' ... i have no contact with the person who made the changes. i tried checking the existing codes but was no luck so i decided to install a new osCommerce to test the authorize.net and there is still no luck. i install this new authorize.net AIM and its not working. i followed the steps in Install.hmtl ... i might be missing something.
this has SSL (has https connection).
it has curl installed ( how can verify if it has curl installed? )
it has a valid authorize.net account/login username. and transaction key.
receipt / relay url are blank
In Direct Response it has
Delimited Respone has YES
Default Field Seperator is COMMA
Field Encapsulator is Double QUOTE