If Digital River handled your PD11 order transaction, then you might be able to go to their website and download it. Of course if Digital River didn't handle your order, then all this means nothing.
If you have your order number for PD 11, or even if you don't, you might be able to get it from www.findmyorder.com. That's a Digital River web site that handled the order transaction for my purchase.
When you purchased PD11, you probably entered a password specifically for that purchase. That is the password you need, not your Cyberlink account password. If you don't have a password, then you can use the last 5 digits of your credit card that you used.
Gateway DX4380, AMD A8-5500 Quad Core 3.2GHz with ATI Radeon HD 7560D; 16GB RAM; 1 TB SATA 7200 RPM; Windows 8 Pro 64-bit; PDR11, PDVD12.