I made a purchase of the video game "History Channels: Great Battles of Rome

I also paid for it and the payment was accepted by worldpay.
but when i went to check the status of my order it shows nothing.
Can you please confirm my order.
Here is the e-mail i received from Worldpay.
Thank you,
Transaction Confirmation
Please retain for your records
Thank you
Your transaction has been processed by WorldPay, on behalf of Slitherine Software UK Ltd.
Transaction details:
Transaction for the value of: USD 47.85
Description: 1-THCGBOR_PSP
From: Slitherine Software UK Ltd
Merchant's cart ID: SS_296
Authorisation Date/Time: 26/Dec/2008 17:01:45
WorldPay's transaction ID: 1587825738
This is not a tax receipt.