I contacted tech support about the trees we unlocked off the CD, and eventually they "purchased" them for me from Cornucopia and credited them into my account. I then redownloaded the latest and greatest versions. It was very sweet of them. Took me a couple of days to get sorted, but I got all my plants back.

We all want something beautiful
Man, I wish I was beautiful
When everybody loves me, I will never be lonely

Counting Crows