[silkstone]

You must make a note of the serial number (or copy and paste it to a text file), but you don't have to download LR from that link. You can install the 30-day trial and just enter the s/n from the Help > Registration dialogue. It should give you a green tick at the right hand side. (The download link wasn't working when I tried it yesterday, but I already had the trial installed.)

It's a good idea to uninstall the beta version first, from Control Panel, and then look under Program Files and Application Data to clear out any LR stuff that's left behind. Provided you keep the library data files (under My Pictures), the new version should automatically rebuild the database during install, and keep all your settings.

Initial reaction to v1.0 has been rather mixed. Some people have had it crashing on them, but so far it hasn't misbehaved for me. That's tempting fate!