I just purchased a refurbished MacBook Pro with OSX 10.6. I want to install Lightroom 3.0. My customer ID is 137378202 and I have a serial number for Lightroom 1 of 1160-4215-9479-6153-4655-3725. Where can I find the serial number for my version 3 Lightroom? I cannot install more recent versions of Lightroom.
Did you actually purchase LR 3? That's where you would find the serial number, either on the box or in an e-mail from Adobe. Here's the complete list of how to find your serial number:
Advice: never post your serial number or other important information in a public forum like this one.
Advice: in the future, you might want to develop a better method of keeping track of important information like serial numbers (which you paid actual money for).