how to get transaction id in “wordpress simple paypal shopping cart plugin”?

I am using the WordPress eStore (plugin to sell digital products securely) which is the premium version of the wordpress paypal shopping cart plugin. I.e. I have integrated nextgen gallery with WPestore and using “wordpress simple paypal shopping cart plugin” for payment purpose.
I have done everything successfully. Customer chooses a product, and then checkout through paypal sandbox and payment is successfully done. But the following requirement is not yet accomplished.

Requirement: I want to save all the order history of customer. So I need transaction number of successful transactions, date and time of transaction, status of transaction (pending, completed etc). When the customer pays through paypal site there is an option to return merchant site. When the customer returns to merchant site, is there an option to collect various transaction parameters (such as transaction id, date and time of transaction, status of transaction)?
If the above requirement is not possible with “wordpress simple paypal shopping cart plugin” then please suggest me a similar plugin to match my requirement.