what you didn't mention was if you owned a registered version of Power 2 Go?
From this website:
What can I do if I lost my program?
There are three ways we can assist you:
Download version
To re-download software you have already purchased on CyberLink Online Store, you will need to go to your order information page and press the re-download button. To view your order please visit Cyberlink Member Zone and click on Check Order Status. If you purchased Extended Download option along with your product, you can download the program that you purchased anytime during the valid period (2 years starts from the day you purchase it).
Note: You are eligible to download the product for 5 times within 30 days after you place that order. After 30 days, you will need to contact technical support and provide your order confirmation email as a proof of purchase. The support team will then send you alternative download link to download the product you purchased.
Boxed version
If you bought a boxed version from our online store, then you can follow the same steps as above. If your purchase was made in a retail store, then we may provide you with a download if you can provide a receipt or if you registered your software prior to losing it.
Bundled version
If you have a bundled version (so the software that came free with your PC, notebook or other hardware), you need to contact your hardware vendor to get the backup disc to install the program.