Versions from other sites like Shockwave aren't necessarily the latest version. What you've downloaded is a trial version. That will time out after an hour if you don't buy the full version from Shockwave.

Where did you get the original version from? If it was from LDW you should download the trial from the LDW website and install it over the first; it should pick up your registration key. If you got it from another site you should download the version from there.